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Code Issues Projects Releases Packages Wiki Activity

Emulate client side vehicle movement (#4648)

Browse source 
* WIP client side vehicles

* Address reviews and remove use of Optional

* Only tick active vehicle

* Track world ticks

* Fixes for Camel dash and pose transition

* Remove vehicle parameter

* Start using blocks refactor

* Update BlockRegistryPopulator

* Update blocks

* Support step height attribute

* Use climbable block tag and TrapDoorBlock

* Lock camel rotation if stationary

* Fix boost ticking

* Keep cache of surrounding blocks

* Fix bug causing BoundingBox position to change in CollisionManager

* Clamp user input

* Support weaving status effect

* Support gravity attribute

* Piston support

* Tick boost for Pig and Strider if any player is controlling

* Submodule

* Address some reviews

* Support world border

* Optimize world border check

* Small optimizations

* Add comments
This commit is contained in:
AJ Ferguson 2024-08-15 03:03:34 -04:00 committed by GitHub
parent 4f7e9fca9c
commit 34bab14860
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
34 changed files with 1903 additions and 67 deletions
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6
core/src/main/java/org/geysermc/geyser/entity/EntityDefinitions.java
View file

@ -888,7 +888,7 @@ public final class EntityDefinitions {
.type(EntityType.PIG)
.heightAndWidth(0.9f)
.addTranslator(MetadataType.BOOLEAN, (pigEntity, entityMetadata) -> pigEntity.setFlag(EntityFlag.SADDLED, ((BooleanEntityMetadata) entityMetadata).getPrimitiveValue()))
.addTranslator(null) // Boost time
.addTranslator(MetadataType.INT, PigEntity::setBoost)
.build();
POLAR_BEAR = EntityDefinition.inherited(PolarBearEntity::new, ageableEntityBase)
.type(EntityType.POLAR_BEAR)
@ -914,7 +914,7 @@ public final class EntityDefinitions {
STRIDER = EntityDefinition.inherited(StriderEntity::new, ageableEntityBase)
.type(EntityType.STRIDER)
.height(1.7f).width(0.9f)
.addTranslator(null) // Boost time
.addTranslator(MetadataType.INT, StriderEntity::setBoost)
.addTranslator(MetadataType.BOOLEAN, StriderEntity::setCold)
.addTranslator(MetadataType.BOOLEAN, StriderEntity::setSaddled)
.build();
@ -955,7 +955,7 @@ public final class EntityDefinitions {
.type(EntityType.CAMEL)
.height(2.375f).width(1.7f)
.addTranslator(MetadataType.BOOLEAN, CamelEntity::setDashing)
.addTranslator(null) // Last pose change tick
.addTranslator(MetadataType.LONG, CamelEntity::setLastPoseTick)
.build();
HORSE = EntityDefinition.inherited(HorseEntity::new, abstractHorseEntityBase)
.type(EntityType.HORSE)

49
core/src/main/java/org/geysermc/geyser/entity/type/LivingEntity.java
View file

@ -41,6 +41,7 @@ import org.cloudburstmc.protocol.bedrock.packet.MobEquipmentPacket;
import org.cloudburstmc.protocol.bedrock.packet.UpdateAttributesPacket;
import org.geysermc.geyser.entity.EntityDefinition;
import org.geysermc.geyser.entity.attribute.GeyserAttributeType;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.inventory.GeyserItemStack;
import org.geysermc.geyser.item.Items;
import org.geysermc.geyser.registry.type.ItemMapping;
@ -294,6 +295,36 @@ public class LivingEntity extends Entity {
return super.interact(hand);
}
@Override
public void moveRelative(double relX, double relY, double relZ, float yaw, float pitch, float headYaw, boolean isOnGround) {
if (this instanceof ClientVehicle clientVehicle) {
if (clientVehicle.isClientControlled()) {
return;
}
clientVehicle.getVehicleComponent().moveRelative(relX, relY, relZ);
}
super.moveRelative(relX, relY, relZ, yaw, pitch, headYaw, isOnGround);
}
@Override
public boolean setBoundingBoxHeight(float height) {
if (valid && this instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().setHeight(height);
}
return super.setBoundingBoxHeight(height);
}
@Override
public void setBoundingBoxWidth(float width) {
if (valid && this instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().setWidth(width);
}
super.setBoundingBoxWidth(width);
}
/**
* Checks to see if a nametag interaction would go through.
*/
@ -407,9 +438,25 @@ public class LivingEntity extends Entity {
this.maxHealth = Math.max((float) AttributeUtils.calculateValue(javaAttribute), 1f);
newAttributes.add(createHealthAttribute());
}
case GENERIC_MOVEMENT_SPEED -> {
AttributeData attributeData = calculateAttribute(javaAttribute, GeyserAttributeType.MOVEMENT_SPEED);
newAttributes.add(attributeData);
if (this instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().setMoveSpeed(attributeData.getValue());
}
}
case GENERIC_STEP_HEIGHT -> {
if (this instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().setStepHeight((float) AttributeUtils.calculateValue(javaAttribute));
}
}
case GENERIC_GRAVITY -> {
if (this instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().setGravity(AttributeUtils.calculateValue(javaAttribute));
}
}
case GENERIC_ATTACK_DAMAGE -> newAttributes.add(calculateAttribute(javaAttribute, GeyserAttributeType.ATTACK_DAMAGE));
case GENERIC_FLYING_SPEED -> newAttributes.add(calculateAttribute(javaAttribute, GeyserAttributeType.FLYING_SPEED));
case GENERIC_MOVEMENT_SPEED -> newAttributes.add(calculateAttribute(javaAttribute, GeyserAttributeType.MOVEMENT_SPEED));
case GENERIC_FOLLOW_RANGE -> newAttributes.add(calculateAttribute(javaAttribute, GeyserAttributeType.FOLLOW_RANGE));
case GENERIC_KNOCKBACK_RESISTANCE -> newAttributes.add(calculateAttribute(javaAttribute, GeyserAttributeType.KNOCKBACK_RESISTANCE));
case GENERIC_JUMP_STRENGTH -> newAttributes.add(calculateAttribute(javaAttribute, GeyserAttributeType.HORSE_JUMP_STRENGTH));

63
core/src/main/java/org/geysermc/geyser/entity/type/living/animal/PigEntity.java
View file

@ -27,20 +27,30 @@ package org.geysermc.geyser.entity.type.living.animal;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.cloudburstmc.math.vector.Vector2f;
import org.cloudburstmc.math.vector.Vector3f;
import org.cloudburstmc.protocol.bedrock.data.definitions.ItemDefinition;
import org.cloudburstmc.protocol.bedrock.data.entity.EntityFlag;
import org.geysermc.geyser.entity.EntityDefinition;
import org.geysermc.geyser.entity.type.Tickable;
import org.geysermc.geyser.entity.type.player.PlayerEntity;
import org.geysermc.geyser.entity.vehicle.BoostableVehicleComponent;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.entity.vehicle.VehicleComponent;
import org.geysermc.geyser.inventory.GeyserItemStack;
import org.geysermc.geyser.item.Items;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.session.cache.tags.ItemTag;
import org.geysermc.geyser.util.EntityUtils;
import org.geysermc.geyser.util.InteractionResult;
import org.geysermc.geyser.util.InteractiveTag;
import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.type.IntEntityMetadata;
import org.geysermc.mcprotocollib.protocol.data.game.entity.player.Hand;
import java.util.UUID;
public class PigEntity extends AnimalEntity {
public class PigEntity extends AnimalEntity implements Tickable, ClientVehicle {
private final BoostableVehicleComponent<PigEntity> vehicleComponent = new BoostableVehicleComponent<>(this, 1.0f);
public PigEntity(GeyserSession session, int entityId, long geyserId, UUID uuid, EntityDefinition<?> definition, Vector3f position, Vector3f motion, float yaw, float pitch, float headYaw) {
super(session, entityId, geyserId, uuid, definition, position, motion, yaw, pitch, headYaw);
@ -84,4 +94,55 @@ public class PigEntity extends AnimalEntity {
}
}
}
public void setBoost(IntEntityMetadata entityMetadata) {
vehicleComponent.startBoost(entityMetadata.getPrimitiveValue());
}
@Override
public void tick() {
PlayerEntity player = getPlayerPassenger();
if (player == null) {
return;
}
if (player == session.getPlayerEntity()) {
if (session.getPlayerInventory().isHolding(Items.CARROT_ON_A_STICK)) {
vehicleComponent.tickBoost();
}
} else { // getHand() for session player seems to always return air
ItemDefinition itemDefinition = session.getItemMappings().getStoredItems().carrotOnAStick().getBedrockDefinition();
if (player.getHand().getDefinition() == itemDefinition || player.getOffhand().getDefinition() == itemDefinition) {
vehicleComponent.tickBoost();
}
}
}
@Override
public VehicleComponent<?> getVehicleComponent() {
return vehicleComponent;
}
@Override
public Vector2f getAdjustedInput(Vector2f input) {
return Vector2f.UNIT_Y;
}
@Override
public float getVehicleSpeed() {
return vehicleComponent.getMoveSpeed() * 0.225f * vehicleComponent.getBoostMultiplier();
}
private @Nullable PlayerEntity getPlayerPassenger() {
if (getFlag(EntityFlag.SADDLED) && !passengers.isEmpty() && passengers.get(0) instanceof PlayerEntity playerEntity) {
return playerEntity;
}
return null;
}
@Override
public boolean isClientControlled() {
return getPlayerPassenger() == session.getPlayerEntity() && session.getPlayerInventory().isHolding(Items.CARROT_ON_A_STICK);
}
}

68
core/src/main/java/org/geysermc/geyser/entity/type/living/animal/StriderEntity.java
View file

@ -27,23 +27,33 @@ package org.geysermc.geyser.entity.type.living.animal;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.cloudburstmc.math.vector.Vector2f;
import org.cloudburstmc.math.vector.Vector3f;
import org.cloudburstmc.protocol.bedrock.data.definitions.ItemDefinition;
import org.cloudburstmc.protocol.bedrock.data.entity.EntityFlag;
import org.geysermc.geyser.entity.EntityDefinition;
import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.type.Tickable;
import org.geysermc.geyser.entity.type.player.PlayerEntity;
import org.geysermc.geyser.entity.vehicle.BoostableVehicleComponent;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.entity.vehicle.VehicleComponent;
import org.geysermc.geyser.inventory.GeyserItemStack;
import org.geysermc.geyser.item.Items;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.session.cache.tags.ItemTag;
import org.geysermc.geyser.util.EntityUtils;
import org.geysermc.geyser.util.InteractionResult;
import org.geysermc.geyser.util.InteractiveTag;
import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.type.BooleanEntityMetadata;
import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.type.IntEntityMetadata;
import org.geysermc.mcprotocollib.protocol.data.game.entity.player.Hand;
import java.util.UUID;
public class StriderEntity extends AnimalEntity {
public class StriderEntity extends AnimalEntity implements Tickable, ClientVehicle {
private final BoostableVehicleComponent<StriderEntity> vehicleComponent = new BoostableVehicleComponent<>(this, 1.0f);
private boolean isCold = false;
public StriderEntity(GeyserSession session, int entityId, long geyserId, UUID uuid, EntityDefinition<?> definition, Vector3f position, Vector3f motion, float yaw, float pitch, float headYaw) {
@ -131,4 +141,60 @@ public class StriderEntity extends AnimalEntity {
}
}
}
public void setBoost(IntEntityMetadata entityMetadata) {
vehicleComponent.startBoost(entityMetadata.getPrimitiveValue());
}
@Override
public void tick() {
PlayerEntity player = getPlayerPassenger();
if (player == null) {
return;
}
if (player == session.getPlayerEntity()) {
if (session.getPlayerInventory().isHolding(Items.WARPED_FUNGUS_ON_A_STICK)) {
vehicleComponent.tickBoost();
}
} else { // getHand() for session player seems to always return air
ItemDefinition itemDefinition = session.getItemMappings().getStoredItems().warpedFungusOnAStick().getBedrockDefinition();
if (player.getHand().getDefinition() == itemDefinition || player.getOffhand().getDefinition() == itemDefinition) {
vehicleComponent.tickBoost();
}
}
}
@Override
public VehicleComponent<?> getVehicleComponent() {
return vehicleComponent;
}
@Override
public Vector2f getAdjustedInput(Vector2f input) {
return Vector2f.UNIT_Y;
}
@Override
public float getVehicleSpeed() {
return vehicleComponent.getMoveSpeed() * (isCold ? 0.35f : 0.55f) * vehicleComponent.getBoostMultiplier();
}
private @Nullable PlayerEntity getPlayerPassenger() {
if (getFlag(EntityFlag.SADDLED) && !passengers.isEmpty() && passengers.get(0) instanceof PlayerEntity playerEntity) {
return playerEntity;
}
return null;
}
@Override
public boolean isClientControlled() {
return getPlayerPassenger() == session.getPlayerEntity() && session.getPlayerInventory().isHolding(Items.WARPED_FUNGUS_ON_A_STICK);
}
@Override
public boolean canWalkOnLava() {
return true;
}
}

67
core/src/main/java/org/geysermc/geyser/entity/type/living/animal/horse/CamelEntity.java
View file

@ -25,26 +25,36 @@
package org.geysermc.geyser.entity.type.living.animal.horse;
import org.cloudburstmc.math.vector.Vector2f;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.cloudburstmc.math.vector.Vector3f;
import org.cloudburstmc.protocol.bedrock.data.AttributeData;
import org.cloudburstmc.protocol.bedrock.data.entity.EntityDataTypes;
import org.cloudburstmc.protocol.bedrock.data.entity.EntityEventType;
import org.cloudburstmc.protocol.bedrock.data.entity.EntityFlag;
import org.cloudburstmc.protocol.bedrock.data.inventory.ContainerType;
import org.cloudburstmc.protocol.bedrock.packet.EntityEventPacket;
import org.geysermc.geyser.entity.EntityDefinition;
import org.geysermc.geyser.entity.attribute.GeyserAttributeType;
import org.geysermc.geyser.entity.vehicle.CamelVehicleComponent;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.entity.vehicle.VehicleComponent;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.session.cache.tags.ItemTag;
import org.geysermc.mcprotocollib.protocol.data.game.entity.attribute.Attribute;
import org.geysermc.mcprotocollib.protocol.data.game.entity.attribute.AttributeType;
import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.Pose;
import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.type.BooleanEntityMetadata;
import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.type.ByteEntityMetadata;
import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.type.LongEntityMetadata;
import java.util.UUID;
public class CamelEntity extends AbstractHorseEntity {
public class CamelEntity extends AbstractHorseEntity implements ClientVehicle {
public static final float SITTING_HEIGHT_DIFFERENCE = 1.43F;
private final CamelVehicleComponent vehicleComponent = new CamelVehicleComponent(this);
public CamelEntity(GeyserSession session, int entityId, long geyserId, UUID uuid, EntityDefinition<?> definition, Vector3f position, Vector3f motion, float yaw, float pitch, float headYaw) {
super(session, entityId, geyserId, uuid, definition, position, motion, yaw, pitch, headYaw);
@ -111,5 +121,58 @@ public class CamelEntity extends AbstractHorseEntity {
}
public void setDashing(BooleanEntityMetadata entityMetadata) {
// Java sends true to show dash animation and start the dash cooldown,
// false ends the dash animation, not the cooldown.
// Bedrock shows dash animation if HAS_DASH_COOLDOWN is set and the camel is above ground
if (entityMetadata.getPrimitiveValue()) {
setFlag(EntityFlag.HAS_DASH_COOLDOWN, true);
vehicleComponent.startDashCooldown();
} else if (!isClientControlled()) { // Don't remove dash cooldown prematurely if client is controlling
setFlag(EntityFlag.HAS_DASH_COOLDOWN, false);
}
}
public void setLastPoseTick(LongEntityMetadata entityMetadata) {
// Tick is based on world time. If negative, the camel is sitting.
// Must be compared to world time to know if the camel is fully standing/sitting or transitioning.
vehicleComponent.setLastPoseTick(entityMetadata.getPrimitiveValue());
}
@Override
protected AttributeData calculateAttribute(Attribute javaAttribute, GeyserAttributeType type) {
AttributeData attributeData = super.calculateAttribute(javaAttribute, type);
if (javaAttribute.getType() == AttributeType.Builtin.GENERIC_JUMP_STRENGTH) {
vehicleComponent.setHorseJumpStrength(attributeData.getValue());
}
return attributeData;
}
@Override
public VehicleComponent<?> getVehicleComponent() {
return vehicleComponent;
}
@Override
public Vector2f getAdjustedInput(Vector2f input) {
return input.mul(0.5f, input.getY() < 0 ? 0.25f : 1.0f);
}
@Override
public boolean isClientControlled() {
return getFlag(EntityFlag.SADDLED) && !passengers.isEmpty() && passengers.get(0) == session.getPlayerEntity();
}
@Override
public float getVehicleSpeed() {
float moveSpeed = vehicleComponent.getMoveSpeed();
if (!getFlag(EntityFlag.HAS_DASH_COOLDOWN) && session.getPlayerEntity().getFlag(EntityFlag.SPRINTING)) {
return moveSpeed + 0.1f;
}
return moveSpeed;
}
@Override
public boolean canClimb() {
return false;
}
}

23
core/src/main/java/org/geysermc/geyser/entity/type/player/SessionPlayerEntity.java
View file

@ -29,6 +29,7 @@ import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
import lombok.Getter;
import lombok.Setter;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.cloudburstmc.math.vector.Vector2f;
import org.cloudburstmc.math.vector.Vector3f;
import org.cloudburstmc.protocol.bedrock.data.AttributeData;
import org.cloudburstmc.protocol.bedrock.data.entity.EntityDataTypes;
@ -42,6 +43,7 @@ import org.geysermc.geyser.level.BedrockDimension;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.util.AttributeUtils;
import org.geysermc.geyser.util.DimensionUtils;
import org.geysermc.geyser.util.MathUtils;
import org.geysermc.mcprotocollib.protocol.data.game.entity.attribute.Attribute;
import org.geysermc.mcprotocollib.protocol.data.game.entity.attribute.AttributeType;
import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.GlobalPos;
@ -74,6 +76,16 @@ public class SessionPlayerEntity extends PlayerEntity {
*/
@Getter
private boolean isRidingInFront;
/**
* Used when emulating client-side vehicles
*/
@Getter
private Vector2f vehicleInput = Vector2f.ZERO;
/**
* Used when emulating client-side vehicles
*/
@Getter
private int vehicleJumpStrength;
private int lastAirSupply = getMaxAir();
@ -315,6 +327,17 @@ public class SessionPlayerEntity extends PlayerEntity {
this.setAirSupply(getMaxAir());
}
public void setVehicleInput(Vector2f vehicleInput) {
this.vehicleInput = Vector2f.from(
MathUtils.clamp(vehicleInput.getX(), -1.0f, 1.0f),
MathUtils.clamp(vehicleInput.getY(), -1.0f, 1.0f)
);
}
public void setVehicleJumpStrength(int vehicleJumpStrength) {
this.vehicleJumpStrength = MathUtils.constrain(vehicleJumpStrength, 0, 100);
}
private boolean isBelowVoidFloor() {
return position.getY() < voidFloorPosition();
}

60
core/src/main/java/org/geysermc/geyser/entity/vehicle/BoostableVehicleComponent.java Normal file
View file

@ -0,0 +1,60 @@
/*
* Copyright (c) 2019-2023 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.geyser.entity.vehicle;
import org.cloudburstmc.math.TrigMath;
import org.geysermc.geyser.entity.type.LivingEntity;
public class BoostableVehicleComponent<T extends LivingEntity & ClientVehicle> extends VehicleComponent<T> {
private int boostLength;
private int boostTicks = 1;
public BoostableVehicleComponent(T vehicle, float stepHeight) {
super(vehicle, stepHeight);
}
public void startBoost(int boostLength) {
this.boostLength = boostLength;
this.boostTicks = 1;
}
public float getBoostMultiplier() {
if (isBoosting()) {
return 1.0f + 1.15f * TrigMath.sin((float) boostTicks / (float) boostLength * TrigMath.PI);
}
return 1.0f;
}
public boolean isBoosting() {
return boostTicks <= boostLength;
}
public void tickBoost() {
if (isBoosting()) {
boostTicks++;
}
}
}

153
core/src/main/java/org/geysermc/geyser/entity/vehicle/CamelVehicleComponent.java Normal file
View file

@ -0,0 +1,153 @@
/*
* Copyright (c) 2019-2023 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.geyser.entity.vehicle;
import lombok.Setter;
import org.cloudburstmc.math.vector.Vector2f;
import org.cloudburstmc.math.vector.Vector3f;
import org.cloudburstmc.protocol.bedrock.data.entity.EntityFlag;
import org.geysermc.geyser.entity.type.living.animal.horse.CamelEntity;
import org.geysermc.geyser.entity.type.player.SessionPlayerEntity;
import org.geysermc.mcprotocollib.protocol.data.game.entity.Effect;
public class CamelVehicleComponent extends VehicleComponent<CamelEntity> {
private static final int STANDING_TICKS = 52;
private static final int DASH_TICKS = 55;
@Setter
private float horseJumpStrength = 0.42f; // Not sent by vanilla Java server when spawned
@Setter
private long lastPoseTick;
private int dashTick;
private int effectJumpBoost;
public CamelVehicleComponent(CamelEntity vehicle) {
super(vehicle, 1.5f);
}
public void startDashCooldown() {
// tickVehicle is only called while the vehicle is mounted. Use session ticks to keep
// track of time instead of counting down
this.dashTick = vehicle.getSession().getTicks() + DASH_TICKS;
}
@Override
public void tickVehicle() {
if (this.dashTick != 0) {
if (vehicle.getSession().getTicks() > this.dashTick) {
vehicle.setFlag(EntityFlag.HAS_DASH_COOLDOWN, false);
this.dashTick = 0;
} else {
vehicle.setFlag(EntityFlag.HAS_DASH_COOLDOWN, true);
}
}
vehicle.setFlag(EntityFlag.CAN_DASH, vehicle.getFlag(EntityFlag.SADDLED) && !isStationary());
vehicle.updateBedrockMetadata();
super.tickVehicle();
}
@Override
public void onDismount() {
// Prevent camel from getting stuck in dash animation
vehicle.setFlag(EntityFlag.HAS_DASH_COOLDOWN, false);
vehicle.updateBedrockMetadata();
super.onDismount();
}
@Override
protected boolean travel(VehicleContext ctx, float speed) {
if (vehicle.isOnGround() && isStationary()) {
vehicle.setMotion(vehicle.getMotion().mul(0, 1, 0));
}
return super.travel(ctx, speed);
}
@Override
protected Vector3f getInputVelocity(VehicleContext ctx, float speed) {
if (isStationary()) {
return Vector3f.ZERO;
}
SessionPlayerEntity player = vehicle.getSession().getPlayerEntity();
Vector3f inputVelocity = super.getInputVelocity(ctx, speed);
float jumpStrength = player.getVehicleJumpStrength();
if (jumpStrength > 0) {
player.setVehicleJumpStrength(0);
if (jumpStrength >= 90) {
jumpStrength = 1.0f;
} else {
jumpStrength = 0.4f + 0.4f * jumpStrength / 90.0f;
}
return inputVelocity.add(Vector3f.createDirectionDeg(0, -player.getYaw())
.mul(22.2222f * jumpStrength * this.moveSpeed * getVelocityMultiplier(ctx))
.up(1.4285f * jumpStrength * (this.horseJumpStrength * getJumpVelocityMultiplier(ctx) + (this.effectJumpBoost * 0.1f))));
}
return inputVelocity;
}
@Override
protected Vector2f getVehicleRotation() {
if (isStationary()) {
return Vector2f.from(vehicle.getYaw(), vehicle.getPitch());
}
return super.getVehicleRotation();
}
/**
* Checks if the camel is sitting
* or transitioning to standing pose.
*/
private boolean isStationary() {
// Java checks if sitting using lastPoseTick
return this.lastPoseTick < 0 || vehicle.getSession().getWorldTicks() < this.lastPoseTick + STANDING_TICKS;
}
@Override
public void setEffect(Effect effect, int effectAmplifier) {
if (effect == Effect.JUMP_BOOST) {
effectJumpBoost = effectAmplifier + 1;
} else {
super.setEffect(effect, effectAmplifier);
}
}
@Override
public void removeEffect(Effect effect) {
if (effect == Effect.JUMP_BOOST) {
effectJumpBoost = 0;
} else {
super.removeEffect(effect);
}
}
}

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/*
* Copyright (c) 2019-2023 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.geyser.entity.vehicle;
import org.cloudburstmc.math.vector.Vector2f;
public interface ClientVehicle {
VehicleComponent<?> getVehicleComponent();
Vector2f getAdjustedInput(Vector2f input);
float getVehicleSpeed();
boolean isClientControlled();
default boolean canWalkOnLava() {
return false;
}
default boolean canClimb() {
return true;
}
}

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/*
* Copyright (c) 2019-2023 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.geyser.entity.vehicle;
import it.unimi.dsi.fastutil.objects.ObjectDoublePair;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.cloudburstmc.math.TrigMath;
import org.cloudburstmc.math.vector.Vector2f;
import org.cloudburstmc.math.vector.Vector3d;
import org.cloudburstmc.math.vector.Vector3f;
import org.cloudburstmc.math.vector.Vector3i;
import org.cloudburstmc.protocol.bedrock.data.entity.EntityFlag;
import org.cloudburstmc.protocol.bedrock.packet.MoveEntityDeltaPacket;
import org.geysermc.erosion.util.BlockPositionIterator;
import org.geysermc.geyser.entity.type.LivingEntity;
import org.geysermc.geyser.level.block.BlockStateValues;
import org.geysermc.geyser.level.block.Blocks;
import org.geysermc.geyser.level.block.Fluid;
import org.geysermc.geyser.level.block.property.Properties;
import org.geysermc.geyser.level.block.type.BedBlock;
import org.geysermc.geyser.level.block.type.Block;
import org.geysermc.geyser.level.block.type.BlockState;
import org.geysermc.geyser.level.block.type.TrapDoorBlock;
import org.geysermc.geyser.level.physics.BoundingBox;
import org.geysermc.geyser.level.physics.CollisionManager;
import org.geysermc.geyser.level.physics.Direction;
import org.geysermc.geyser.session.cache.tags.BlockTag;
import org.geysermc.geyser.translator.collision.BlockCollision;
import org.geysermc.geyser.translator.collision.SolidCollision;
import org.geysermc.geyser.util.BlockUtils;
import org.geysermc.geyser.util.MathUtils;
import org.geysermc.mcprotocollib.protocol.data.game.entity.Effect;
import org.geysermc.mcprotocollib.protocol.data.game.entity.attribute.AttributeType;
import org.geysermc.mcprotocollib.protocol.data.game.entity.type.EntityType;
import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.level.ServerboundMoveVehiclePacket;
public class VehicleComponent<T extends LivingEntity & ClientVehicle> {
private static final ObjectDoublePair<Fluid> EMPTY_FLUID_PAIR = ObjectDoublePair.of(Fluid.EMPTY, 0.0);
private static final float MAX_LOGICAL_FLUID_HEIGHT = 8.0f / BlockStateValues.NUM_FLUID_LEVELS;
private static final float BASE_SLIPPERINESS_CUBED = 0.6f * 0.6f * 0.6f;
private static final float MIN_VELOCITY = 0.003f;
protected final T vehicle;
protected final BoundingBox boundingBox;
protected float stepHeight;
protected float moveSpeed;
protected double gravity;
protected int effectLevitation;
protected boolean effectSlowFalling;
protected boolean effectWeaving;
public VehicleComponent(T vehicle, float stepHeight) {
this.vehicle = vehicle;
this.stepHeight = stepHeight;
this.moveSpeed = (float) AttributeType.Builtin.GENERIC_MOVEMENT_SPEED.getDef();
this.gravity = AttributeType.Builtin.GENERIC_GRAVITY.getDef();
double width = vehicle.getBoundingBoxWidth();
double height = vehicle.getBoundingBoxHeight();
this.boundingBox = new BoundingBox(
vehicle.getPosition().getX(),
vehicle.getPosition().getY() + height / 2,
vehicle.getPosition().getZ(),
width, height, width
);
}
public void setWidth(float width) {
boundingBox.setSizeX(width);
boundingBox.setSizeZ(width);
}
public void setHeight(float height) {
boundingBox.translate(0, (height - boundingBox.getSizeY()) / 2, 0);
boundingBox.setSizeY(height);
}
public void moveAbsolute(double x, double y, double z) {
boundingBox.setMiddleX(x);
boundingBox.setMiddleY(y + boundingBox.getSizeY() / 2);
boundingBox.setMiddleZ(z);
}
public void moveRelative(double x, double y, double z) {
boundingBox.translate(x, y, z);
}
public void moveRelative(Vector3d vec) {
boundingBox.translate(vec);
}
public BoundingBox getBoundingBox() {
return this.boundingBox;
}
public void setEffect(Effect effect, int effectAmplifier) {
switch (effect) {
case LEVITATION -> effectLevitation = effectAmplifier + 1;
case SLOW_FALLING -> effectSlowFalling = true;
case WEAVING -> effectWeaving = true;
}
}
public void removeEffect(Effect effect) {
switch (effect) {
case LEVITATION -> effectLevitation = 0;
case SLOW_FALLING -> effectSlowFalling = false;
case WEAVING -> effectWeaving = false;
}
}
public void setMoveSpeed(float moveSpeed) {
this.moveSpeed = moveSpeed;
}
public float getMoveSpeed() {
return moveSpeed;
}
public void setStepHeight(float stepHeight) {
this.stepHeight = MathUtils.clamp(stepHeight, 1.0f, 10.0f);
}
public void setGravity(double gravity) {
this.gravity = MathUtils.constrain(gravity, -1.0, 1.0);
}
public Vector3d correctMovement(Vector3d movement) {
return vehicle.getSession().getCollisionManager().correctMovement(
movement, boundingBox, vehicle.isOnGround(), this.stepHeight, true, vehicle.canWalkOnLava()
);
}
public void onMount() {
vehicle.getSession().getPlayerEntity().setVehicleInput(Vector2f.ZERO);
vehicle.getSession().getPlayerEntity().setVehicleJumpStrength(0);
}
public void onDismount() {
//
}
/**
* Called every session tick while the player is mounted on the vehicle.
*/
public void tickVehicle() {
if (!vehicle.isClientControlled()) {
return;
}
VehicleContext ctx = new VehicleContext();
ctx.loadSurroundingBlocks();
ObjectDoublePair<Fluid> fluidHeight = updateFluidMovement(ctx);
switch (fluidHeight.left()) {
case WATER -> waterMovement(ctx);
case LAVA -> {
if (vehicle.canWalkOnLava() && ctx.centerBlock().is(Blocks.LAVA)) {
landMovement(ctx);
} else {
lavaMovement(ctx, fluidHeight.rightDouble());
}
}
case EMPTY -> landMovement(ctx);
}
}
/**
* Adds velocity of all colliding fluids to the vehicle, and returns the height of the fluid to use for movement.
*
* @param ctx context
* @return type and height of fluid to use for movement
*/
protected ObjectDoublePair<Fluid> updateFluidMovement(VehicleContext ctx) {
BoundingBox box = boundingBox.clone();
box.expand(-0.001);
Vector3d min = box.getMin();
Vector3d max = box.getMax();
BlockPositionIterator iter = BlockPositionIterator.fromMinMax(min.getFloorX(), min.getFloorY(), min.getFloorZ(), max.getFloorX(), max.getFloorY(), max.getFloorZ());
double waterHeight = getFluidHeightAndApplyMovement(ctx, iter, Fluid.WATER, 0.014, min.getY());
double lavaHeight = getFluidHeightAndApplyMovement(ctx, iter, Fluid.LAVA, vehicle.getSession().getDimensionType().ultrawarm() ? 0.007 : 0.007 / 3, min.getY());
// Apply upward motion if the vehicle is a Strider, and it is submerged in lava
if (lavaHeight > 0 && vehicle.getDefinition().entityType() == EntityType.STRIDER) {
Vector3i blockPos = ctx.centerPos().toInt();
if (!CollisionManager.FLUID_COLLISION.isBelow(blockPos.getY(), boundingBox) || ctx.getBlock(blockPos.up()).is(Blocks.LAVA)) {
vehicle.setMotion(vehicle.getMotion().mul(0.5f).add(0, 0.05f, 0));
} else {
vehicle.setOnGround(true);
}
}
// Water movement has priority over lava movement
if (waterHeight > 0) {
return ObjectDoublePair.of(Fluid.WATER, waterHeight);
}
if (lavaHeight > 0) {
return ObjectDoublePair.of(Fluid.LAVA, lavaHeight);
}
return EMPTY_FLUID_PAIR;
}
/**
* Calculates how deep the vehicle is in a fluid, and applies its velocity.
*
* @param ctx context
* @param iter iterator of colliding blocks
* @param fluid type of fluid
* @param speed multiplier for fluid motion
* @param minY minY of the bounding box used to check for fluid collision; not exactly the same as the vehicle's bounding box
* @return height of fluid compared to minY
*/
protected double getFluidHeightAndApplyMovement(VehicleContext ctx, BlockPositionIterator iter, Fluid fluid, double speed, double minY) {
Vector3d totalVelocity = Vector3d.ZERO;
double maxFluidHeight = 0;
int fluidBlocks = 0;
for (iter.reset(); iter.hasNext(); iter.next()) {
int blockId = ctx.getBlockId(iter);
if (BlockStateValues.getFluid(blockId) != fluid) {
continue;
}
Vector3i blockPos = Vector3i.from(iter.getX(), iter.getY(), iter.getZ());
float worldFluidHeight = getWorldFluidHeight(fluid, blockId);
double vehicleFluidHeight = blockPos.getY() + worldFluidHeight - minY;
if (vehicleFluidHeight < 0) {
// Vehicle is not submerged in this fluid block
continue;
}
// flowBlocked is only used when determining if a falling fluid should drag the vehicle downwards.
// If this block is not a falling fluid, set to true to avoid unnecessary checks.
boolean flowBlocked = worldFluidHeight != 1;
Vector3d velocity = Vector3d.ZERO;
for (Direction direction : Direction.HORIZONTAL) {
Vector3i adjacentBlockPos = blockPos.add(direction.getUnitVector());
int adjacentBlockId = ctx.getBlockId(adjacentBlockPos);
Fluid adjacentFluid = BlockStateValues.getFluid(adjacentBlockId);
float fluidHeightDiff = 0;
if (adjacentFluid == fluid) {
fluidHeightDiff = getLogicalFluidHeight(fluid, blockId) - getLogicalFluidHeight(fluid, adjacentBlockId);
} else if (adjacentFluid == Fluid.EMPTY) {
// If the adjacent block is not a fluid and does not have collision,
// check if there is a fluid under it
BlockCollision adjacentBlockCollision = BlockUtils.getCollision(adjacentBlockId);
if (adjacentBlockCollision == null) {
float adjacentFluidHeight = getLogicalFluidHeight(fluid, ctx.getBlockId(adjacentBlockPos.add(Direction.DOWN.getUnitVector())));
if (adjacentFluidHeight != -1) { // Only care about same type of fluid
fluidHeightDiff = getLogicalFluidHeight(fluid, blockId) - (adjacentFluidHeight - MAX_LOGICAL_FLUID_HEIGHT);
}
} else if (!flowBlocked) {
// No need to check if flow is already blocked from another direction, or if this isn't a falling fluid.
flowBlocked = isFlowBlocked(fluid, adjacentBlockId);
}
}
if (fluidHeightDiff != 0) {
velocity = velocity.add(direction.getUnitVector().toDouble().mul(fluidHeightDiff));
}
}
if (worldFluidHeight == 1) { // If falling fluid
// If flow is not blocked, check if it is blocked for the fluid above
if (!flowBlocked) {
Vector3i blockPosUp = blockPos.up();
for (Direction direction : Direction.HORIZONTAL) {
flowBlocked = isFlowBlocked(fluid, ctx.getBlockId(blockPosUp.add(direction.getUnitVector())));
if (flowBlocked) {
break;
}
}
}
if (flowBlocked) {
velocity = javaNormalize(velocity).add(0.0, -6.0, 0.0);
}
}
velocity = javaNormalize(velocity);
maxFluidHeight = Math.max(vehicleFluidHeight, maxFluidHeight);
if (maxFluidHeight < 0.4) {
velocity = velocity.mul(maxFluidHeight);
}
totalVelocity = totalVelocity.add(velocity);
fluidBlocks++;
}
if (!totalVelocity.equals(Vector3d.ZERO)) {
Vector3f motion = vehicle.getMotion();
totalVelocity = javaNormalize(totalVelocity.mul(1.0 / fluidBlocks));
totalVelocity = totalVelocity.mul(speed);
if (totalVelocity.length() < 0.0045 && Math.abs(motion.getX()) < MIN_VELOCITY && Math.abs(motion.getZ()) < MIN_VELOCITY) {
totalVelocity = javaNormalize(totalVelocity).mul(0.0045);
}
vehicle.setMotion(motion.add(totalVelocity.toFloat()));
}
return maxFluidHeight;
}
/**
* Java edition returns the zero vector if the length of the input vector is less than 0.0001
*/
protected Vector3d javaNormalize(Vector3d vec) {
double len = vec.length();
return len < 1.0E-4 ? Vector3d.ZERO : Vector3d.from(vec.getX() / len, vec.getY() / len, vec.getZ() / len);
}
protected float getWorldFluidHeight(Fluid fluidType, int blockId) {
return (float) switch (fluidType) {
case WATER -> BlockStateValues.getWaterHeight(blockId);
case LAVA -> BlockStateValues.getLavaHeight(blockId);
case EMPTY -> -1;
};
}
protected float getLogicalFluidHeight(Fluid fluidType, int blockId) {
return Math.min(getWorldFluidHeight(fluidType, blockId), MAX_LOGICAL_FLUID_HEIGHT);
}
protected boolean isFlowBlocked(Fluid fluid, int adjacentBlockId) {
if (BlockState.of(adjacentBlockId).is(Blocks.ICE)) {
return false;
}
if (BlockStateValues.getFluid(adjacentBlockId) == fluid) {
return false;
}
// TODO: supposed to check if the opposite face of the block touching the fluid is solid, instead of SolidCollision
return BlockUtils.getCollision(adjacentBlockId) instanceof SolidCollision;
}
protected void waterMovement(VehicleContext ctx) {
double gravity = getGravity();
float drag = vehicle.getFlag(EntityFlag.SPRINTING) ? 0.9f : 0.8f; // 0.8f: getBaseMovementSpeedMultiplier
double originalY = ctx.centerPos().getY();
boolean falling = vehicle.getMotion().getY() <= 0;
// NOT IMPLEMENTED: depth strider and dolphins grace
boolean horizontalCollision = travel(ctx, 0.02f);
if (horizontalCollision && isClimbing(ctx)) {
vehicle.setMotion(Vector3f.from(vehicle.getMotion().getX(), 0.2f, vehicle.getMotion().getZ()));
}
vehicle.setMotion(vehicle.getMotion().mul(drag, 0.8f, drag));
vehicle.setMotion(getFluidGravity(gravity, falling));
if (horizontalCollision && shouldApplyFluidJumpBoost(ctx, originalY)) {
vehicle.setMotion(Vector3f.from(vehicle.getMotion().getX(), 0.3f, vehicle.getMotion().getZ()));
}
}
protected void lavaMovement(VehicleContext ctx, double lavaHeight) {
double gravity = getGravity();
double originalY = ctx.centerPos().getY();
boolean falling = vehicle.getMotion().getY() <= 0;
boolean horizontalCollision = travel(ctx, 0.02f);
if (lavaHeight <= (boundingBox.getSizeY() * 0.85 < 0.4 ? 0.0 : 0.4)) { // Swim height
vehicle.setMotion(vehicle.getMotion().mul(0.5f, 0.8f, 0.5f));
vehicle.setMotion(getFluidGravity(gravity, falling));
} else {
vehicle.setMotion(vehicle.getMotion().mul(0.5f));
}
vehicle.setMotion(vehicle.getMotion().down((float) (gravity / 4.0)));
if (horizontalCollision && shouldApplyFluidJumpBoost(ctx, originalY)) {
vehicle.setMotion(Vector3f.from(vehicle.getMotion().getX(), 0.3f, vehicle.getMotion().getZ()));
}
}
protected void landMovement(VehicleContext ctx) {
double gravity = getGravity();
float slipperiness = BlockStateValues.getSlipperiness(getVelocityBlock(ctx));
float drag = vehicle.isOnGround() ? 0.91f * slipperiness : 0.91f;
float speed = vehicle.getVehicleSpeed() * (vehicle.isOnGround() ? BASE_SLIPPERINESS_CUBED / (slipperiness * slipperiness * slipperiness) : 0.1f);
boolean horizontalCollision = travel(ctx, speed);
if (isClimbing(ctx)) {
Vector3f motion = vehicle.getMotion();
vehicle.setMotion(
Vector3f.from(
MathUtils.clamp(motion.getX(), -0.15f, 0.15f),
horizontalCollision ? 0.2f : Math.max(motion.getY(), -0.15f),
MathUtils.clamp(motion.getZ(), -0.15f, 0.15f)
)
);
// NOT IMPLEMENTED: climbing in powdered snow
}
if (effectLevitation > 0) {
vehicle.setMotion(vehicle.getMotion().up((0.05f * effectLevitation - vehicle.getMotion().getY()) * 0.2f));
} else {
vehicle.setMotion(vehicle.getMotion().down((float) gravity));
// NOT IMPLEMENTED: slow fall when in unloaded chunk
}
vehicle.setMotion(vehicle.getMotion().mul(drag, 0.98f, drag));
}
protected boolean shouldApplyFluidJumpBoost(VehicleContext ctx, double originalY) {
BoundingBox box = boundingBox.clone();
box.translate(vehicle.getMotion().toDouble().up(0.6f - ctx.centerPos().getY() + originalY));
box.expand(-1.0E-7);
BlockPositionIterator iter = vehicle.getSession().getCollisionManager().collidableBlocksIterator(box);
for (iter.reset(); iter.hasNext(); iter.next()) {
int blockId = ctx.getBlockId(iter);
// Also check for fluids
BlockCollision blockCollision = BlockUtils.getCollision(blockId);
if (blockCollision == null && BlockStateValues.getFluid(blockId) != Fluid.EMPTY) {
blockCollision = CollisionManager.SOLID_COLLISION;
}
if (blockCollision != null && blockCollision.checkIntersection(iter.getX(), iter.getY(), iter.getZ(), box)) {
return false;
}
}
return true;
}
protected Vector3f getFluidGravity(double gravity, boolean falling) {
Vector3f motion = vehicle.getMotion();
if (gravity != 0 && !vehicle.getFlag(EntityFlag.SPRINTING)) {
float newY = (float) (motion.getY() - gravity / 16);
if (falling && Math.abs(motion.getY() - 0.005f) >= MIN_VELOCITY && Math.abs(newY) < MIN_VELOCITY) {
newY = -MIN_VELOCITY;
}
return Vector3f.from(motion.getX(), newY, motion.getZ());
}
return motion;
}
/**
* Check if any blocks the vehicle is colliding with should multiply movement. (Cobweb, powder snow, berry bush)
* <p>
* This is different from the speed factor of a block the vehicle is standing on, such as soul sand.
*
* @param ctx context
* @return the multiplier
*/
protected @Nullable Vector3f getBlockMovementMultiplier(VehicleContext ctx) {
BoundingBox box = boundingBox.clone();
box.expand(-1.0E-7);
Vector3i min = box.getMin().toInt();
Vector3i max = box.getMax().toInt();
// Iterate xyz backwards
// Minecraft iterates forwards but only the last multiplier affects movement
for (int x = max.getX(); x >= min.getX(); x--) {
for (int y = max.getY(); y >= min.getY(); y--) {
for (int z = max.getZ(); z >= min.getZ(); z--) {
Block block = ctx.getBlock(x, y, z).block();
Vector3f multiplier = null;
if (block == Blocks.COBWEB) {
if (effectWeaving) {
multiplier = Vector3f.from(0.5, 0.25, 0.5);
} else {
multiplier = Vector3f.from(0.25, 0.05f, 0.25);
}
} else if (block == Blocks.POWDER_SNOW) {
multiplier = Vector3f.from(0.9f, 1.5, 0.9f);
} else if (block == Blocks.SWEET_BERRY_BUSH) {
multiplier = Vector3f.from(0.8f, 0.75, 0.8f);
}
if (multiplier != null) {
return multiplier;
}
}
}
}
return null;
}
protected void applyBlockCollisionEffects(VehicleContext ctx) {
BoundingBox box = boundingBox.clone();
box.expand(-1.0E-7);
Vector3i min = box.getMin().toInt();
Vector3i max = box.getMax().toInt();
BlockPositionIterator iter = BlockPositionIterator.fromMinMax(min.getX(), min.getY(), min.getZ(), max.getX(), max.getY(), max.getZ());
for (iter.reset(); iter.hasNext(); iter.next()) {
BlockState blockState = ctx.getBlock(iter);
if (blockState.is(Blocks.HONEY_BLOCK)) {
onHoneyBlockCollision();
} else if (blockState.is(Blocks.BUBBLE_COLUMN)) {
onBubbleColumnCollision(blockState.getValue(Properties.DRAG));
}
}
}
protected void onHoneyBlockCollision() {
if (vehicle.isOnGround() || vehicle.getMotion().getY() >= -0.08f) {
return;
}
// NOT IMPLEMENTED: don't slide if inside the honey block
Vector3f motion = vehicle.getMotion();
float mul = motion.getY() < -0.13f ? -0.05f / motion.getY() : 1;
vehicle.setMotion(Vector3f.from(motion.getX() * mul, -0.05f, motion.getZ() * mul));
}
protected void onBubbleColumnCollision(boolean drag) {
Vector3f motion = vehicle.getMotion();
vehicle.setMotion(Vector3f.from(
motion.getX(),
drag ? Math.max(-0.3f, motion.getY() - 0.03f) : Math.min(0.7f, motion.getY() + 0.06f),
motion.getZ()
));
}
/**
* Calculates the next position of the vehicle while checking for collision and adjusting velocity.
*
* @return true if there was a horizontal collision
*/
protected boolean travel(VehicleContext ctx, float speed) {
Vector3f motion = vehicle.getMotion();
// Java only does this client side
motion = motion.mul(0.98f);
motion = Vector3f.from(
Math.abs(motion.getX()) < MIN_VELOCITY ? 0 : motion.getX(),
Math.abs(motion.getY()) < MIN_VELOCITY ? 0 : motion.getY(),
Math.abs(motion.getZ()) < MIN_VELOCITY ? 0 : motion.getZ()
);
// !isImmobile
if (vehicle.isAlive()) {
motion = motion.add(getInputVelocity(ctx, speed));
}
Vector3f movementMultiplier = getBlockMovementMultiplier(ctx);
if (movementMultiplier != null) {
motion = motion.mul(movementMultiplier);
}
// Check world border before blocks
Vector3d correctedMovement = vehicle.getSession().getWorldBorder().correctMovement(boundingBox, motion.toDouble());
correctedMovement = vehicle.getSession().getCollisionManager().correctMovement(
correctedMovement, boundingBox, vehicle.isOnGround(), this.stepHeight, true, vehicle.canWalkOnLava()
);
boundingBox.translate(correctedMovement);
ctx.loadSurroundingBlocks(); // Context must be reloaded after vehicle is moved
// Non-zero values indicate a collision on that axis
Vector3d moveDiff = motion.toDouble().sub(correctedMovement);
vehicle.setOnGround(moveDiff.getY() != 0 && motion.getY() < 0);
boolean horizontalCollision = moveDiff.getX() != 0 || moveDiff.getZ() != 0;
boolean bounced = false;
if (vehicle.isOnGround()) {
Block landingBlock = getLandingBlock(ctx).block();
if (landingBlock == Blocks.SLIME_BLOCK) {
motion = Vector3f.from(motion.getX(), -motion.getY(), motion.getZ());
bounced = true;
// Slow horizontal movement
float absY = Math.abs(motion.getY());
if (absY < 0.1f) {
float mul = 0.4f + absY * 0.2f;
motion = motion.mul(mul, 1.0f, mul);
}
} else if (landingBlock instanceof BedBlock) {
motion = Vector3f.from(motion.getX(), -motion.getY() * 0.66f, motion.getZ());
bounced = true;
}
}
// Set motion to 0 if a movement multiplier was used, else set to 0 on each axis with a collision
if (movementMultiplier != null) {
motion = Vector3f.ZERO;
} else {
motion = motion.mul(
moveDiff.getX() == 0 ? 1 : 0,
moveDiff.getY() == 0 || bounced ? 1 : 0,
moveDiff.getZ() == 0 ? 1 : 0
);
}
// Send the new position to the bedrock client and java server
moveVehicle(ctx.centerPos());
vehicle.setMotion(motion);
applyBlockCollisionEffects(ctx);
float velocityMultiplier = getVelocityMultiplier(ctx);
vehicle.setMotion(vehicle.getMotion().mul(velocityMultiplier, 1.0f, velocityMultiplier));
return horizontalCollision;
}
protected boolean isClimbing(VehicleContext ctx) {
if (!vehicle.canClimb()) {
return false;
}
BlockState blockState = ctx.centerBlock();
if (vehicle.getSession().getTagCache().is(BlockTag.CLIMBABLE, blockState.block())) {
return true;
}
// Check if the vehicle is in an open trapdoor with a ladder of the same direction under it
if (blockState.block() instanceof TrapDoorBlock && blockState.getValue(Properties.OPEN)) {
BlockState ladderState = ctx.getBlock(ctx.centerPos().toInt().down());
return ladderState.is(Blocks.LADDER) &&
ladderState.getValue(Properties.HORIZONTAL_FACING) == blockState.getValue(Properties.HORIZONTAL_FACING);
}
return false;
}
/**
* Translates the player's input into velocity.
*
* @param ctx context
* @param speed multiplier for input
* @return velocity
*/
protected Vector3f getInputVelocity(VehicleContext ctx, float speed) {
Vector2f input = vehicle.getSession().getPlayerEntity().getVehicleInput();
input = input.mul(0.98f);
input = vehicle.getAdjustedInput(input);
input = normalizeInput(input);
input = input.mul(speed);
// Match player rotation
float yaw = vehicle.getSession().getPlayerEntity().getYaw();
float sin = TrigMath.sin(yaw * TrigMath.DEG_TO_RAD);
float cos = TrigMath.cos(yaw * TrigMath.DEG_TO_RAD);
return Vector3f.from(input.getX() * cos - input.getY() * sin, 0, input.getY() * cos + input.getX() * sin);
}
protected Vector2f normalizeInput(Vector2f input) {
float lenSquared = input.lengthSquared();
if (lenSquared < 1.0E-7) {
return Vector2f.ZERO;
} else if (lenSquared > 1.0) {
return input.normalize();
}
return input;
}
/**
* Gets the rotation to use for the vehicle. This is based on the player's head rotation.
*/
protected Vector2f getVehicleRotation() {
LivingEntity player = vehicle.getSession().getPlayerEntity();
return Vector2f.from(player.getYaw(), player.getPitch() * 0.5f);
}
/**
* Sets the new position for the vehicle and sends packets to both the java server and bedrock client.
* <p>
* This also updates the session's last vehicle move timestamp.
* @param javaPos the new java position of the vehicle
*/
protected void moveVehicle(Vector3d javaPos) {
Vector3f bedrockPos = javaPos.toFloat();
Vector2f rotation = getVehicleRotation();
MoveEntityDeltaPacket moveEntityDeltaPacket = new MoveEntityDeltaPacket();
moveEntityDeltaPacket.setRuntimeEntityId(vehicle.getGeyserId());
if (vehicle.isOnGround()) {
moveEntityDeltaPacket.getFlags().add(MoveEntityDeltaPacket.Flag.ON_GROUND);
}
if (vehicle.getPosition().getX() != bedrockPos.getX()) {
moveEntityDeltaPacket.getFlags().add(MoveEntityDeltaPacket.Flag.HAS_X);
moveEntityDeltaPacket.setX(bedrockPos.getX());
}
if (vehicle.getPosition().getY() != bedrockPos.getY()) {
moveEntityDeltaPacket.getFlags().add(MoveEntityDeltaPacket.Flag.HAS_Y);
moveEntityDeltaPacket.setY(bedrockPos.getY());
}
if (vehicle.getPosition().getZ() != bedrockPos.getZ()) {
moveEntityDeltaPacket.getFlags().add(MoveEntityDeltaPacket.Flag.HAS_Z);
moveEntityDeltaPacket.setZ(bedrockPos.getZ());
}
vehicle.setPosition(bedrockPos);
if (vehicle.getYaw() != rotation.getX()) {
moveEntityDeltaPacket.getFlags().add(MoveEntityDeltaPacket.Flag.HAS_YAW);
moveEntityDeltaPacket.setYaw(rotation.getX());
vehicle.setYaw(rotation.getX());
}
if (vehicle.getPitch() != rotation.getY()) {
moveEntityDeltaPacket.getFlags().add(MoveEntityDeltaPacket.Flag.HAS_PITCH);
moveEntityDeltaPacket.setPitch(rotation.getY());
vehicle.setPitch(rotation.getY());
}
if (vehicle.getHeadYaw() != rotation.getX()) { // Same as yaw
moveEntityDeltaPacket.getFlags().add(MoveEntityDeltaPacket.Flag.HAS_HEAD_YAW);
moveEntityDeltaPacket.setHeadYaw(rotation.getX());
vehicle.setHeadYaw(rotation.getX());
}
if (!moveEntityDeltaPacket.getFlags().isEmpty()) {
vehicle.getSession().sendUpstreamPacket(moveEntityDeltaPacket);
}
ServerboundMoveVehiclePacket moveVehiclePacket = new ServerboundMoveVehiclePacket(javaPos.getX(), javaPos.getY(), javaPos.getZ(), rotation.getX(), rotation.getY());
vehicle.getSession().sendDownstreamPacket(moveVehiclePacket);
vehicle.getSession().setLastVehicleMoveTimestamp(System.currentTimeMillis());
}
protected double getGravity() {
if (!vehicle.getFlag(EntityFlag.HAS_GRAVITY)) {
return 0;
}
if (vehicle.getMotion().getY() <= 0 && effectSlowFalling) {
return Math.min(0.01, this.gravity);
}
return this.gravity;
}
/**
* Finds the position of the main block supporting the vehicle.
* Used when determining slipperiness, speed, etc.
* <p>
* Should use {@link VehicleContext#supportingBlockPos()}, instead of calling this directly.
*
* @param ctx context
* @return position of the main block supporting this entity
*/
private @Nullable Vector3i getSupportingBlockPos(VehicleContext ctx) {
Vector3i result = null;
if (vehicle.isOnGround()) {
BoundingBox box = boundingBox.clone();
box.extend(0, -1.0E-6, 0); // Extend slightly down
Vector3i min = box.getMin().toInt();
Vector3i max = box.getMax().toInt();
// Use minY as maxY
BlockPositionIterator iter = BlockPositionIterator.fromMinMax(min.getX(), min.getY(), min.getZ(), max.getX(), min.getY(), max.getZ());
double minDistance = Double.MAX_VALUE;
for (iter.reset(); iter.hasNext(); iter.next()) {
Vector3i blockPos = Vector3i.from(iter.getX(), iter.getY(), iter.getZ());
int blockId = ctx.getBlockId(iter);
BlockCollision blockCollision;
if (vehicle.canWalkOnLava()) {
blockCollision = vehicle.getSession().getCollisionManager().getCollisionLavaWalking(blockId, blockPos.getY(), boundingBox);
} else {
blockCollision = BlockUtils.getCollision(blockId);
}
if (blockCollision != null && blockCollision.checkIntersection(blockPos, box)) {
double distance = ctx.centerPos().distanceSquared(blockPos.toDouble().add(0.5f, 0.5f, 0.5f));
if (distance <= minDistance) {
minDistance = distance;
result = blockPos;
}
}
}
}
return result;
}
/**
* Returns the block that is x amount of blocks under the main supporting block.
*/
protected BlockState getBlockUnderSupport(VehicleContext ctx, float dist) {
Vector3i supportingBlockPos = ctx.supportingBlockPos();
Vector3i blockPos;
if (supportingBlockPos != null) {
blockPos = Vector3i.from(supportingBlockPos.getX(), Math.floor(ctx.centerPos().getY() - dist), supportingBlockPos.getZ());
} else {
blockPos = ctx.centerPos().sub(0, dist, 0).toInt();
}
return ctx.getBlock(blockPos);
}
/**
* The block to use when determining if the vehicle should bounce after landing. Currently just slime and bed blocks.
*/
protected BlockState getLandingBlock(VehicleContext ctx) {
return getBlockUnderSupport(ctx, 0.2f);
}
/**
* The block to use when calculating slipperiness and speed. If on a slab, this will be the block under the slab.
*/
protected BlockState getVelocityBlock(VehicleContext ctx) {
return getBlockUnderSupport(ctx, 0.500001f);
}
protected float getVelocityMultiplier(VehicleContext ctx) {
Block block = ctx.centerBlock().block();
if (block == Blocks.WATER || block == Blocks.BUBBLE_COLUMN) {
return 1.0f;
}
if (block == Blocks.SOUL_SAND || block == Blocks.HONEY_BLOCK) {
return 0.4f;
}
block = getVelocityBlock(ctx).block();
if (block == Blocks.SOUL_SAND || block == Blocks.HONEY_BLOCK) {
return 0.4f;
}
return 1.0f;
}
protected float getJumpVelocityMultiplier(VehicleContext ctx) {
Block block = ctx.centerBlock().block();
if (block == Blocks.HONEY_BLOCK) {
return 0.5f;
}
block = getVelocityBlock(ctx).block();
if (block == Blocks.HONEY_BLOCK) {
return 0.5f;
}
return 1.0f;
}
protected class VehicleContext {
private Vector3d centerPos;
private Vector3d cachePos;
private BlockState centerBlock;
private Vector3i supportingBlockPos;
private BlockPositionIterator blockIter;
private int[] blocks;
/**
* Cache frequently used data and blocks used in movement calculations.
* <p>
* Can be called multiple times, and must be called at least once before using the VehicleContext.
*/
protected void loadSurroundingBlocks() {
this.centerPos = boundingBox.getBottomCenter();
// Reuse block cache if vehicle moved less than 1 block
if (this.cachePos == null || this.cachePos.distanceSquared(this.centerPos) > 1) {
BoundingBox box = boundingBox.clone();
box.expand(2);
Vector3i min = box.getMin().toInt();
Vector3i max = box.getMax().toInt();
this.blockIter = BlockPositionIterator.fromMinMax(min.getX(), min.getY(), min.getZ(), max.getX(), max.getY(), max.getZ());
this.blocks = vehicle.getSession().getGeyser().getWorldManager().getBlocksAt(vehicle.getSession(), this.blockIter);
this.cachePos = this.centerPos;
}
this.centerBlock = getBlock(this.centerPos.toInt());
this.supportingBlockPos = null;
}
protected Vector3d centerPos() {
return this.centerPos;
}
protected BlockState centerBlock() {
return this.centerBlock;
}
protected Vector3i supportingBlockPos() {
if (this.supportingBlockPos == null) {
this.supportingBlockPos = getSupportingBlockPos(this);
}
return this.supportingBlockPos;
}
protected int getBlockId(int x, int y, int z) {
int index = this.blockIter.getIndex(x, y, z);
if (index == -1) {
vehicle.getSession().getGeyser().getLogger().debug("[client-vehicle] Block cache miss");
return vehicle.getSession().getGeyser().getWorldManager().getBlockAt(vehicle.getSession(), x, y, z);
}
return blocks[index];
}
protected int getBlockId(Vector3i pos) {
return getBlockId(pos.getX(), pos.getY(), pos.getZ());
}
protected int getBlockId(BlockPositionIterator iter) {
return getBlockId(iter.getX(), iter.getY(), iter.getZ());
}
protected BlockState getBlock(int x, int y, int z) {
return BlockState.of(getBlockId(x, y, z));
}
protected BlockState getBlock(Vector3i pos) {
return BlockState.of(getBlockId(pos.getX(), pos.getY(), pos.getZ()));
}
protected BlockState getBlock(BlockPositionIterator iter) {
return BlockState.of(getBlockId(iter.getX(), iter.getY(), iter.getZ()));
}
}
}

10
core/src/main/java/org/geysermc/geyser/inventory/PlayerInventory.java
View file

@ -62,6 +62,16 @@ public class PlayerInventory extends Inventory {
cursor = newCursor;
}
/**
* Checks if the player is holding the specified item in either hand
*
* @param item The item to look for
* @return If the player is holding the item in either hand
*/
public boolean isHolding(@NonNull Item item) {
return getItemInHand().asItem() == item || getOffhand().asItem() == item;
}
public GeyserItemStack getItemInHand(@NonNull Hand hand) {
return hand == Hand.OFF_HAND ? getOffhand() : getItemInHand();
}

4
core/src/main/java/org/geysermc/geyser/inventory/item/StoredItemMappings.java
View file

@ -43,6 +43,7 @@ public class StoredItemMappings {
private final ItemMapping banner;
private final ItemMapping barrier;
private final ItemMapping bow;
private final ItemMapping carrotOnAStick;
private final ItemMapping compass;
private final ItemMapping crossbow;
private final ItemMapping egg;
@ -52,6 +53,7 @@ public class StoredItemMappings {
private final ItemMapping shield;
private final ItemMapping totem;
private final ItemMapping upgradeTemplate;
private final ItemMapping warpedFungusOnAStick;
private final ItemMapping wheat;
private final ItemMapping writableBook;
private final ItemMapping writtenBook;
@ -60,6 +62,7 @@ public class StoredItemMappings {
this.banner = load(itemMappings, Items.WHITE_BANNER); // As of 1.17.10, all banners have the same Bedrock ID
this.barrier = load(itemMappings, Items.BARRIER);
this.bow = load(itemMappings, Items.BOW);
this.carrotOnAStick = load(itemMappings, Items.CARROT_ON_A_STICK);
this.compass = load(itemMappings, Items.COMPASS);
this.crossbow = load(itemMappings, Items.CROSSBOW);
this.egg = load(itemMappings, Items.EGG);
@ -69,6 +72,7 @@ public class StoredItemMappings {
this.shield = load(itemMappings, Items.SHIELD);
this.totem = load(itemMappings, Items.TOTEM_OF_UNDYING);
this.upgradeTemplate = load(itemMappings, Items.NETHERITE_UPGRADE_SMITHING_TEMPLATE);
this.warpedFungusOnAStick = load(itemMappings, Items.WARPED_FUNGUS_ON_A_STICK);
this.wheat = load(itemMappings, Items.WHEAT);
this.writableBook = load(itemMappings, Items.WRITABLE_BOOK);
this.writtenBook = load(itemMappings, Items.WRITTEN_BOOK);

8
core/src/main/java/org/geysermc/geyser/level/JavaDimension.java
View file

@ -34,11 +34,13 @@ import org.geysermc.geyser.util.DimensionUtils;
* Represents the information we store from the current Java dimension
* @param piglinSafe Whether piglins and hoglins are safe from conversion in this dimension.
* This controls if they have the shaking effect applied in the dimension.
* @param ultrawarm If this dimension is ultrawarm.
* Used when calculating movement in lava for client-side vehicles.
* @param bedrockId the Bedrock dimension ID of this dimension.
* As a Java dimension can be null in some login cases (e.g. GeyserConnect), make sure the player
* is logged in before utilizing this field.
*/
public record JavaDimension(int minY, int maxY, boolean piglinSafe, double worldCoordinateScale, int bedrockId, boolean isNetherLike) {
public record JavaDimension(int minY, int maxY, boolean piglinSafe, boolean ultrawarm, double worldCoordinateScale, int bedrockId, boolean isNetherLike) {
public static JavaDimension read(RegistryEntryContext entry) {
NbtMap dimension = entry.data();
@ -48,6 +50,8 @@ public record JavaDimension(int minY, int maxY, boolean piglinSafe, double world
// Set if piglins/hoglins should shake
boolean piglinSafe = dimension.getBoolean("piglin_safe");
// Entities in lava move faster in ultrawarm dimensions
boolean ultrawarm = dimension.getBoolean("ultrawarm");
// Load world coordinate scale for the world border
double coordinateScale = dimension.getNumber("coordinate_scale").doubleValue(); // FIXME see if we can change this in the NBT library itself.
@ -67,6 +71,6 @@ public record JavaDimension(int minY, int maxY, boolean piglinSafe, double world
isNetherLike = DimensionUtils.NETHER_IDENTIFIER.equals(effects);
}
return new JavaDimension(minY, maxY, piglinSafe, coordinateScale, bedrockId, isNetherLike);
return new JavaDimension(minY, maxY, piglinSafe, ultrawarm, coordinateScale, bedrockId, isNetherLike);
}
}

56
core/src/main/java/org/geysermc/geyser/level/block/BlockStateValues.java
View file

@ -36,7 +36,7 @@ import org.geysermc.geyser.registry.BlockRegistries;
* Used for block entities if the Java block state contains Bedrock block information.
*/
public final class BlockStateValues {
public static final int NUM_WATER_LEVELS = 9;
public static final int NUM_FLUID_LEVELS = 9;
/**
* Checks if a block sticks to other blocks
@ -99,6 +99,25 @@ public final class BlockStateValues {
};
}
/**
* Get the type of fluid from the block state, including waterlogged blocks.
*
* @param state BlockState of the block
* @return The type of fluid
*/
public static Fluid getFluid(int state) {
BlockState blockState = BlockState.of(state);
if (blockState.is(Blocks.WATER) || BlockRegistries.WATERLOGGED.get().get(state)) {
return Fluid.WATER;
}
if (blockState.is(Blocks.LAVA)) {
return Fluid.LAVA;
}
return Fluid.EMPTY;
}
/**
* Get the level of water from the block state.
*
@ -127,7 +146,7 @@ public final class BlockStateValues {
waterLevel = 0;
}
if (waterLevel >= 0) {
double waterHeight = 1 - (waterLevel + 1) / ((double) NUM_WATER_LEVELS);
double waterHeight = 1 - (waterLevel + 1) / ((double) NUM_FLUID_LEVELS);
// Falling water is a full block
if (waterLevel >= 8) {
waterHeight = 1;
@ -137,6 +156,39 @@ public final class BlockStateValues {
return -1;
}
/**
* Get the level of lava from the block state.
*
* @param state BlockState of the block
* @return The lava level or -1 if the block isn't lava
*/
public static int getLavaLevel(int state) {
BlockState blockState = BlockState.of(state);
if (!blockState.is(Blocks.LAVA)) {
return -1;
}
return blockState.getValue(Properties.LEVEL);
}
/**
* Get the height of lava from the block state
*
* @param state BlockState of the block
* @return The lava height or -1 if the block does not contain lava
*/
public static double getLavaHeight(int state) {
int lavaLevel = BlockStateValues.getLavaLevel(state);
if (lavaLevel >= 0) {
double lavaHeight = 1 - (lavaLevel + 1) / ((double) NUM_FLUID_LEVELS);
// Falling lava is a full block
if (lavaLevel >= 8) {
lavaHeight = 1;
}
return lavaHeight;
}
return -1;
}
/**
* Get the slipperiness of a block.
* This is used in ItemEntity to calculate the friction on an item as it slides across the ground

32
core/src/main/java/org/geysermc/geyser/level/block/Fluid.java Normal file
View file

@ -0,0 +1,32 @@
/*
* Copyright (c) 2019-2023 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.geyser.level.block;
public enum Fluid {
WATER,
LAVA,
EMPTY
}

38
core/src/main/java/org/geysermc/geyser/level/physics/BoundingBox.java
View file

@ -33,6 +33,8 @@ import org.cloudburstmc.math.vector.Vector3d;
@Data
@AllArgsConstructor
public class BoundingBox implements Cloneable {
private static final double EPSILON = 1.0E-7;
private double middleX;
private double middleY;
private double middleZ;
@ -57,10 +59,24 @@ public class BoundingBox implements Cloneable {
sizeZ += Math.abs(z);
}
public void expand(double x, double y, double z) {
sizeX += x;
sizeY += y;
sizeZ += z;
}
public void translate(Vector3d translate) {
translate(translate.getX(), translate.getY(), translate.getZ());
}
public void extend(Vector3d extend) {
extend(extend.getX(), extend.getY(), extend.getZ());
}
public void expand(double expand) {
expand(expand, expand, expand);
}
public boolean checkIntersection(double offsetX, double offsetY, double offsetZ, BoundingBox otherBox) {
return (Math.abs((middleX + offsetX) - otherBox.getMiddleX()) * 2 < (sizeX + otherBox.getSizeX())) &&
(Math.abs((middleY + offsetY) - otherBox.getMiddleY()) * 2 < (sizeY + otherBox.getSizeY())) &&
@ -78,6 +94,14 @@ public class BoundingBox implements Cloneable {
return Vector3d.from(x, y, z);
}
public double getMin(Axis axis) {
return switch (axis) {
case X -> middleX - sizeX / 2;
case Y -> middleY - sizeY / 2;
case Z -> middleZ - sizeZ / 2;
};
}
public Vector3d getMax() {
double x = middleX + sizeX / 2;
double y = middleY + sizeY / 2;
@ -85,15 +109,23 @@ public class BoundingBox implements Cloneable {
return Vector3d.from(x, y, z);
}
public double getMax(Axis axis) {
return switch (axis) {
case X -> middleX + sizeX / 2;
case Y -> middleY + sizeY / 2;
case Z -> middleZ + sizeZ / 2;
};
}
public Vector3d getBottomCenter() {
return Vector3d.from(middleX, middleY - sizeY / 2, middleZ);
}
private boolean checkOverlapInAxis(double xOffset, double yOffset, double zOffset, BoundingBox otherBox, Axis axis) {
return switch (axis) {
case X -> Math.abs((middleX + xOffset) - otherBox.getMiddleX()) * 2 < (sizeX + otherBox.getSizeX());
case Y -> Math.abs((middleY + yOffset) - otherBox.getMiddleY()) * 2 < (sizeY + otherBox.getSizeY());
case Z -> Math.abs((middleZ + zOffset) - otherBox.getMiddleZ()) * 2 < (sizeZ + otherBox.getSizeZ());
case X -> (sizeX + otherBox.getSizeX()) - Math.abs((middleX + xOffset) - otherBox.getMiddleX()) * 2 > EPSILON;
case Y -> (sizeY + otherBox.getSizeY()) - Math.abs((middleY + yOffset) - otherBox.getMiddleY()) * 2 > EPSILON;
case Z -> (sizeZ + otherBox.getSizeZ()) - Math.abs((middleZ + zOffset) - otherBox.getMiddleZ()) * 2 > EPSILON;
};
}

93
core/src/main/java/org/geysermc/geyser/level/physics/CollisionManager.java
View file

@ -38,6 +38,7 @@ import org.geysermc.erosion.util.BlockPositionIterator;
import org.geysermc.geyser.entity.EntityDefinitions;
import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.type.player.PlayerEntity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.level.block.BlockStateValues;
import org.geysermc.geyser.level.block.Blocks;
import org.geysermc.geyser.level.block.property.Properties;
@ -45,7 +46,9 @@ import org.geysermc.geyser.level.block.type.BlockState;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.session.cache.PistonCache;
import org.geysermc.geyser.translator.collision.BlockCollision;
import org.geysermc.geyser.translator.collision.OtherCollision;
import org.geysermc.geyser.translator.collision.ScaffoldingCollision;
import org.geysermc.geyser.translator.collision.SolidCollision;
import org.geysermc.geyser.util.BlockUtils;
import java.text.DecimalFormat;
@ -53,6 +56,8 @@ import java.text.DecimalFormatSymbols;
import java.util.Locale;
public class CollisionManager {
public static final BlockCollision SOLID_COLLISION = new SolidCollision(null);
public static final BlockCollision FLUID_COLLISION = new OtherCollision(new BoundingBox[]{new BoundingBox(0.5, 0.25, 0.5, 1, 0.5, 1)});
private final GeyserSession session;
@ -128,6 +133,21 @@ public class CollisionManager {
playerBoundingBox.setSizeY(playerHeight);
}
/**
* Gets the bounding box to use for player movement.
* <p>
* This will return either the bounding box of a {@link ClientVehicle}, or the player's own bounding box.
*
* @return the bounding box to use for movement calculations
*/
public BoundingBox getActiveBoundingBox() {
if (session.getPlayerEntity().getVehicle() instanceof ClientVehicle clientVehicle && clientVehicle.isClientControlled()) {
return clientVehicle.getVehicleComponent().getBoundingBox();
}
return playerBoundingBox;
}
/**
* Adjust the Bedrock position before sending to the Java server to account for inaccuracies in movement between
* the two versions. Will also send corrected movement packets back to Bedrock if they collide with pistons.
@ -150,6 +170,15 @@ public class CollisionManager {
Vector3d position = Vector3d.from(Double.parseDouble(Float.toString(bedrockPosition.getX())), javaY,
Double.parseDouble(Float.toString(bedrockPosition.getZ())));
// Don't correct position if controlling a vehicle
if (session.getPlayerEntity().getVehicle() instanceof ClientVehicle clientVehicle && clientVehicle.isClientControlled()) {
playerBoundingBox.setMiddleX(position.getX());
playerBoundingBox.setMiddleY(position.getY() + playerBoundingBox.getSizeY() / 2);
playerBoundingBox.setMiddleZ(position.getZ());
return playerBoundingBox.getBottomCenter();
}
Vector3d startingPos = playerBoundingBox.getBottomCenter();
Vector3d movement = position.sub(startingPos);
Vector3d adjustedMovement = correctPlayerMovement(movement, false, teleported);
@ -173,7 +202,8 @@ public class CollisionManager {
// Send corrected position to Bedrock if they differ by too much to prevent de-syncs
if (onGround != newOnGround || movement.distanceSquared(adjustedMovement) > INCORRECT_MOVEMENT_THRESHOLD) {
PlayerEntity playerEntity = session.getPlayerEntity();
if (pistonCache.getPlayerMotion().equals(Vector3f.ZERO) && !pistonCache.isPlayerSlimeCollision()) {
// Client will dismount if on a vehicle
if (playerEntity.getVehicle() == null && pistonCache.getPlayerMotion().equals(Vector3f.ZERO) && !pistonCache.isPlayerSlimeCollision()) {
playerEntity.moveAbsolute(position.toFloat(), playerEntity.getYaw(), playerEntity.getPitch(), playerEntity.getHeadYaw(), newOnGround, true);
}
}
@ -268,13 +298,13 @@ public class CollisionManager {
if (teleported || (!checkWorld && session.getPistonCache().getPistons().isEmpty())) { // There is nothing to check
return movement;
}
return correctMovement(movement, playerBoundingBox, session.getPlayerEntity().isOnGround(), PLAYER_STEP_UP, checkWorld);
return correctMovement(movement, playerBoundingBox, session.getPlayerEntity().isOnGround(), PLAYER_STEP_UP, checkWorld, false);
}
public Vector3d correctMovement(Vector3d movement, BoundingBox boundingBox, boolean onGround, double stepUp, boolean checkWorld) {
public Vector3d correctMovement(Vector3d movement, BoundingBox boundingBox, boolean onGround, double stepUp, boolean checkWorld, boolean walkOnLava) {
Vector3d adjustedMovement = movement;
if (!movement.equals(Vector3d.ZERO)) {
adjustedMovement = correctMovementForCollisions(movement, boundingBox, checkWorld);
adjustedMovement = correctMovementForCollisions(movement, boundingBox, checkWorld, walkOnLava);
}
boolean verticalCollision = adjustedMovement.getY() != movement.getY();
@ -283,26 +313,27 @@ public class CollisionManager {
onGround = onGround || (verticalCollision && falling);
if (onGround && horizontalCollision) {
Vector3d horizontalMovement = Vector3d.from(movement.getX(), 0, movement.getZ());
Vector3d stepUpMovement = correctMovementForCollisions(horizontalMovement.up(stepUp), boundingBox, checkWorld);
Vector3d stepUpMovement = correctMovementForCollisions(horizontalMovement.up(stepUp), boundingBox, checkWorld, walkOnLava);
BoundingBox stretchedBoundingBox = boundingBox.clone();
stretchedBoundingBox.extend(horizontalMovement);
double maxStepUp = correctMovementForCollisions(Vector3d.from(0, stepUp, 0), stretchedBoundingBox, checkWorld).getY();
double maxStepUp = correctMovementForCollisions(Vector3d.from(0, stepUp, 0), stretchedBoundingBox, checkWorld, walkOnLava).getY();
if (maxStepUp < stepUp) { // The player collided with a block above them
boundingBox.translate(0, maxStepUp, 0);
Vector3d adjustedStepUpMovement = correctMovementForCollisions(horizontalMovement, boundingBox, checkWorld);
boundingBox.translate(0, -maxStepUp, 0);
BoundingBox stepUpBoundingBox = boundingBox.clone();
stepUpBoundingBox.translate(0, maxStepUp, 0);
Vector3d adjustedStepUpMovement = correctMovementForCollisions(horizontalMovement, stepUpBoundingBox, checkWorld, walkOnLava);
if (squaredHorizontalLength(adjustedStepUpMovement) > squaredHorizontalLength(stepUpMovement)) {
stepUpMovement = adjustedStepUpMovement.up(maxStepUp);
}
}
if (squaredHorizontalLength(stepUpMovement) > squaredHorizontalLength(adjustedMovement)) {
boundingBox.translate(stepUpMovement.getX(), stepUpMovement.getY(), stepUpMovement.getZ());
BoundingBox stepUpBoundingBox = boundingBox.clone();
stepUpBoundingBox.translate(stepUpMovement.getX(), stepUpMovement.getY(), stepUpMovement.getZ());
// Apply the player's remaining vertical movement
double verticalMovement = correctMovementForCollisions(Vector3d.from(0, movement.getY() - stepUpMovement.getY(), 0), boundingBox, checkWorld).getY();
boundingBox.translate(-stepUpMovement.getX(), -stepUpMovement.getY(), -stepUpMovement.getZ());
double verticalMovement = correctMovementForCollisions(Vector3d.from(0, movement.getY() - stepUpMovement.getY(), 0), stepUpBoundingBox, checkWorld, walkOnLava).getY();
stepUpMovement = stepUpMovement.up(verticalMovement);
adjustedMovement = stepUpMovement;
@ -315,43 +346,53 @@ public class CollisionManager {
return vector.getX() * vector.getX() + vector.getZ() * vector.getZ();
}
private Vector3d correctMovementForCollisions(Vector3d movement, BoundingBox boundingBox, boolean checkWorld) {
private Vector3d correctMovementForCollisions(Vector3d movement, BoundingBox boundingBox, boolean checkWorld, boolean walkOnLava) {
double movementX = movement.getX();
double movementY = movement.getY();
double movementZ = movement.getZ();
// Position might change slightly due to floating point error
double originalX = boundingBox.getMiddleX();
double originalY = boundingBox.getMiddleY();
double originalZ = boundingBox.getMiddleZ();
BoundingBox movementBoundingBox = boundingBox.clone();
movementBoundingBox.extend(movement);
BlockPositionIterator iter = collidableBlocksIterator(movementBoundingBox);
if (Math.abs(movementY) > CollisionManager.COLLISION_TOLERANCE) {
movementY = computeCollisionOffset(boundingBox, Axis.Y, movementY, iter, checkWorld);
movementY = computeCollisionOffset(boundingBox, Axis.Y, movementY, iter, checkWorld, walkOnLava);
boundingBox.translate(0, movementY, 0);
}
boolean checkZFirst = Math.abs(movementZ) > Math.abs(movementX);
if (checkZFirst && Math.abs(movementZ) > CollisionManager.COLLISION_TOLERANCE) {
movementZ = computeCollisionOffset(boundingBox, Axis.Z, movementZ, iter, checkWorld);
movementZ = computeCollisionOffset(boundingBox, Axis.Z, movementZ, iter, checkWorld, walkOnLava);
boundingBox.translate(0, 0, movementZ);
}
if (Math.abs(movementX) > CollisionManager.COLLISION_TOLERANCE) {
movementX = computeCollisionOffset(boundingBox, Axis.X, movementX, iter, checkWorld);
movementX = computeCollisionOffset(boundingBox, Axis.X, movementX, iter, checkWorld, walkOnLava);
boundingBox.translate(movementX, 0, 0);
}
if (!checkZFirst && Math.abs(movementZ) > CollisionManager.COLLISION_TOLERANCE) {
movementZ = computeCollisionOffset(boundingBox, Axis.Z, movementZ, iter, checkWorld);
movementZ = computeCollisionOffset(boundingBox, Axis.Z, movementZ, iter, checkWorld, walkOnLava);
boundingBox.translate(0, 0, movementZ);
}
boundingBox.translate(-movementX, -movementY, -movementZ);
boundingBox.setMiddleX(originalX);
boundingBox.setMiddleY(originalY);
boundingBox.setMiddleZ(originalZ);
return Vector3d.from(movementX, movementY, movementZ);
}
private double computeCollisionOffset(BoundingBox boundingBox, Axis axis, double offset, BlockPositionIterator iter, boolean checkWorld) {
private double computeCollisionOffset(BoundingBox boundingBox, Axis axis, double offset, BlockPositionIterator iter, boolean checkWorld, boolean walkOnLava) {
for (iter.reset(); iter.hasNext(); iter.next()) {
int x = iter.getX();
int y = iter.getY();
int z = iter.getZ();
if (checkWorld) {
BlockCollision blockCollision = BlockUtils.getCollisionAt(session, x, y, z);
int blockId = session.getGeyser().getWorldManager().getBlockAt(session, x, y, z);
BlockCollision blockCollision = walkOnLava ? getCollisionLavaWalking(blockId, y, boundingBox) : BlockUtils.getCollision(blockId);
if (blockCollision != null && !(blockCollision instanceof ScaffoldingCollision)) {
offset = blockCollision.computeCollisionOffset(x, y, z, boundingBox, axis, offset);
}
@ -364,6 +405,16 @@ public class CollisionManager {
return offset;
}
/**
* @return the block collision appropriate for entities that can walk on lava (Strider)
*/
public BlockCollision getCollisionLavaWalking(int blockId, int blockY, BoundingBox boundingBox) {
if (BlockStateValues.getLavaLevel(blockId) == 0 && FLUID_COLLISION.isBelow(blockY, boundingBox)) {
return FLUID_COLLISION;
}
return BlockUtils.getCollision(blockId);
}
/**
* @return true if the block located at the player's floor position plus 1 would intersect with the player,
* were they not sneaking
@ -417,7 +468,7 @@ public class CollisionManager {
double eyeY = playerBoundingBox.getMiddleY() - playerBoundingBox.getSizeY() / 2d + session.getEyeHeight();
double eyeZ = playerBoundingBox.getMiddleZ();
eyeY -= 1 / ((double) BlockStateValues.NUM_WATER_LEVELS); // Subtract the height of one water layer
eyeY -= 1 / ((double) BlockStateValues.NUM_FLUID_LEVELS); // Subtract the height of one water layer
int blockID = session.getGeyser().getWorldManager().getBlockAt(session, GenericMath.floor(eyeX), GenericMath.floor(eyeY), GenericMath.floor(eyeZ));
double waterHeight = BlockStateValues.getWaterHeight(blockID);

1
core/src/main/java/org/geysermc/geyser/level/physics/Direction.java
View file

@ -38,6 +38,7 @@ public enum Direction {
EAST(4, Vector3i.UNIT_X, Axis.X, org.geysermc.mcprotocollib.protocol.data.game.entity.object.Direction.EAST);
public static final Direction[] VALUES = values();
public static final Direction[] HORIZONTAL = new Direction[]{Direction.NORTH, Direction.EAST, Direction.SOUTH, Direction.WEST};
private final int reversedId;
@Getter

21
core/src/main/java/org/geysermc/geyser/session/GeyserSession.java
View file

@ -128,6 +128,7 @@ import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.type.ItemFrameEntity;
import org.geysermc.geyser.entity.type.Tickable;
import org.geysermc.geyser.entity.type.player.SessionPlayerEntity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.erosion.AbstractGeyserboundPacketHandler;
import org.geysermc.geyser.erosion.GeyserboundHandshakePacketHandler;
import org.geysermc.geyser.impl.camera.CameraDefinitions;
@ -602,6 +603,19 @@ public class GeyserSession implements GeyserConnection, GeyserCommandSource {
*/
private ScheduledFuture<?> tickThread = null;
/**
* The number of ticks that have elapsed since the start of this session
*/
private int ticks;
/**
* The world time in ticks according to the server
* <p>
* Note: The TickingStatePacket is currently ignored.
*/
@Setter
private long worldTicks;
/**
* Used to return the player to their original rotation after using an item in BedrockInventoryTransactionTranslator
*/
@ -1261,6 +1275,10 @@ public class GeyserSession implements GeyserConnection, GeyserCommandSource {
isInWorldBorderWarningArea = false;
}
Entity vehicle = playerEntity.getVehicle();
if (vehicle instanceof ClientVehicle clientVehicle && vehicle.isValid()) {
clientVehicle.getVehicleComponent().tickVehicle();
}
for (Tickable entity : entityCache.getTickableEntities()) {
entity.tick();
@ -1296,6 +1314,9 @@ public class GeyserSession implements GeyserConnection, GeyserCommandSource {
} catch (Throwable throwable) {
throwable.printStackTrace();
}
ticks++;
worldTicks++;
}
public void setAuthenticationData(AuthData authData) {

26
core/src/main/java/org/geysermc/geyser/session/cache/PistonCache.java vendored
View file

@ -33,7 +33,9 @@ import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
import lombok.AccessLevel;
import lombok.Getter;
import lombok.Setter;
import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.type.player.SessionPlayerEntity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.level.physics.Axis;
import org.geysermc.geyser.level.physics.BoundingBox;
import org.geysermc.geyser.session.GeyserSession;
@ -119,6 +121,12 @@ public class PistonCache {
private void sendPlayerMovement() {
if (!playerDisplacement.equals(Vector3d.ZERO) && playerMotion.equals(Vector3f.ZERO)) {
SessionPlayerEntity playerEntity = session.getPlayerEntity();
Entity vehicle = playerEntity.getVehicle();
if (vehicle instanceof ClientVehicle clientVehicle && clientVehicle.isClientControlled()) {
return;
}
boolean isOnGround = playerDisplacement.getY() > 0 || playerEntity.isOnGround();
Vector3d position = session.getCollisionManager().getPlayerBoundingBox().getBottomCenter();
playerEntity.moveAbsolute(position.toFloat(), playerEntity.getYaw(), playerEntity.getPitch(), playerEntity.getHeadYaw(), isOnGround, true);
@ -128,6 +136,13 @@ public class PistonCache {
private void sendPlayerMotion() {
if (!playerMotion.equals(Vector3f.ZERO)) {
SessionPlayerEntity playerEntity = session.getPlayerEntity();
Entity vehicle = playerEntity.getVehicle();
if (vehicle instanceof ClientVehicle clientVehicle && clientVehicle.isClientControlled()) {
vehicle.setMotion(playerMotion);
return;
}
playerEntity.setMotion(playerMotion);
SetEntityMotionPacket setEntityMotionPacket = new SetEntityMotionPacket();
@ -149,10 +164,15 @@ public class PistonCache {
totalDisplacement = totalDisplacement.max(-0.51d, -0.51d, -0.51d).min(0.51d, 0.51d, 0.51d);
Vector3d delta = totalDisplacement.sub(playerDisplacement);
// Check if the piston is pushing a player into collision
delta = session.getCollisionManager().correctPlayerMovement(delta, true, false);
session.getCollisionManager().getPlayerBoundingBox().translate(delta.getX(), delta.getY(), delta.getZ());
// Check if the piston is pushing a player into collision
if (session.getPlayerEntity().getVehicle() instanceof ClientVehicle clientVehicle && clientVehicle.isClientControlled()) {
delta = clientVehicle.getVehicleComponent().correctMovement(delta);
clientVehicle.getVehicleComponent().moveRelative(delta);
} else {
delta = session.getCollisionManager().correctPlayerMovement(delta, true, false);
session.getCollisionManager().getPlayerBoundingBox().translate(delta.getX(), delta.getY(), delta.getZ());
}
playerDisplacement = totalDisplacement;
}

52
core/src/main/java/org/geysermc/geyser/session/cache/WorldBorder.java vendored
View file

@ -28,6 +28,7 @@ package org.geysermc.geyser.session.cache;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.cloudburstmc.math.GenericMath;
import org.cloudburstmc.math.vector.Vector2d;
import org.cloudburstmc.math.vector.Vector3d;
import org.cloudburstmc.math.vector.Vector3f;
import org.cloudburstmc.protocol.bedrock.data.LevelEvent;
import org.cloudburstmc.protocol.bedrock.data.LevelEventType;
@ -36,8 +37,12 @@ import lombok.Getter;
import lombok.Setter;
import org.geysermc.geyser.entity.EntityDefinitions;
import org.geysermc.geyser.entity.type.player.PlayerEntity;
import org.geysermc.geyser.level.physics.Axis;
import org.geysermc.geyser.level.physics.BoundingBox;
import org.geysermc.geyser.session.GeyserSession;
import static org.geysermc.geyser.level.physics.CollisionManager.COLLISION_TOLERANCE;
public class WorldBorder {
private static final double DEFAULT_WORLD_BORDER_SIZE = 5.9999968E7D;
@ -190,6 +195,53 @@ public class WorldBorder {
return entityPosition.getX() > warningMinX && entityPosition.getX() < warningMaxX && entityPosition.getZ() > warningMinZ && entityPosition.getZ() < warningMaxZ;
}
/**
* Adjusts the movement of an entity so that it does not cross the world border.
*
* @param boundingBox bounding box of the entity
* @param movement movement of the entity
* @return the corrected movement
*/
public Vector3d correctMovement(BoundingBox boundingBox, Vector3d movement) {
double correctedX;
if (movement.getX() < 0) {
correctedX = -limitMovement(-movement.getX(), boundingBox.getMin(Axis.X) - GenericMath.floor(minX));
} else {
correctedX = limitMovement(movement.getX(), GenericMath.ceil(maxX) - boundingBox.getMax(Axis.X));
}
// Outside of border, don't adjust movement
if (Double.isNaN(correctedX)) {
return movement;
}
double correctedZ;
if (movement.getZ() < 0) {
correctedZ = -limitMovement(-movement.getZ(), boundingBox.getMin(Axis.Z) - GenericMath.floor(minZ));
} else {
correctedZ = limitMovement(movement.getZ(), GenericMath.ceil(maxZ) - boundingBox.getMax(Axis.Z));
}
if (Double.isNaN(correctedZ)) {
return movement;
}
return Vector3d.from(correctedX, movement.getY(), correctedZ);
}
private double limitMovement(double movement, double limit) {
if (limit < 0) {
// Return NaN to indicate outside of border
return Double.NaN;
}
if (limit < COLLISION_TOLERANCE) {
return 0;
}
return Math.min(movement, limit);
}
/**
* Updates the world border's minimum and maximum properties
*/

18
core/src/main/java/org/geysermc/geyser/translator/collision/BlockCollision.java
View file

@ -166,4 +166,22 @@ public class BlockCollision {
}
return offset;
}
/**
* Checks if this block collision is below the given bounding box.
*
* @param blockY the y position of the block in the world
* @param boundingBox the bounding box to compare
* @return true if this block collision is below the bounding box
*/
public boolean isBelow(int blockY, BoundingBox boundingBox) {
double minY = boundingBox.getMiddleY() - boundingBox.getSizeY() / 2;
for (BoundingBox b : boundingBoxes) {
double offset = blockY + b.getMiddleY() + b.getSizeY() / 2 - minY;
if (offset > CollisionManager.COLLISION_TOLERANCE) {
return false;
}
}
return true;
}
}

60
core/src/main/java/org/geysermc/geyser/translator/level/block/entity/PistonBlockEntity.java
View file

@ -37,6 +37,7 @@ import org.cloudburstmc.math.vector.Vector3i;
import org.cloudburstmc.nbt.NbtMap;
import org.cloudburstmc.nbt.NbtMapBuilder;
import org.cloudburstmc.protocol.bedrock.packet.UpdateBlockPacket;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.level.block.BlockStateValues;
import org.geysermc.geyser.level.block.Blocks;
import org.geysermc.geyser.level.block.property.Properties;
@ -347,18 +348,31 @@ public class PistonBlockEntity {
blockMovement = 1f - lastProgress;
}
BoundingBox playerBoundingBox = session.getCollisionManager().getPlayerBoundingBox();
boolean onGround;
BoundingBox playerBoundingBox;
if (session.getPlayerEntity().getVehicle() instanceof ClientVehicle clientVehicle && clientVehicle.isClientControlled()) {
onGround = session.getPlayerEntity().getVehicle().isOnGround();
playerBoundingBox = clientVehicle.getVehicleComponent().getBoundingBox();
} else {
onGround = session.getPlayerEntity().isOnGround();
playerBoundingBox = session.getCollisionManager().getPlayerBoundingBox();
}
// Shrink the collision in the other axes slightly, to avoid false positives when pressed up against the side of blocks
Vector3d shrink = Vector3i.ONE.sub(direction.abs()).toDouble().mul(CollisionManager.COLLISION_TOLERANCE * 2);
playerBoundingBox.setSizeX(playerBoundingBox.getSizeX() - shrink.getX());
playerBoundingBox.setSizeY(playerBoundingBox.getSizeY() - shrink.getY());
playerBoundingBox.setSizeZ(playerBoundingBox.getSizeZ() - shrink.getZ());
double sizeX = playerBoundingBox.getSizeX();
double sizeY = playerBoundingBox.getSizeY();
double sizeZ = playerBoundingBox.getSizeZ();
playerBoundingBox.setSizeX(sizeX - shrink.getX());
playerBoundingBox.setSizeY(sizeY - shrink.getY());
playerBoundingBox.setSizeZ(sizeZ - shrink.getZ());
// Resolve collision with the piston head
BlockState pistonHeadId = Blocks.PISTON_HEAD.defaultBlockState()
.withValue(Properties.SHORT, false)
.withValue(Properties.FACING, orientation);
pushPlayerBlock(pistonHeadId, getPistonHeadPos().toDouble(), blockMovement, playerBoundingBox);
pushPlayerBlock(pistonHeadId, getPistonHeadPos().toDouble(), blockMovement, playerBoundingBox, onGround);
// Resolve collision with any attached moving blocks, but skip slime blocks
// This prevents players from being launched by slime blocks covered by other blocks
@ -366,7 +380,7 @@ public class PistonBlockEntity {
BlockState state = entry.getValue();
if (!state.is(Blocks.SLIME_BLOCK)) {
Vector3d blockPos = entry.getKey().toDouble();
pushPlayerBlock(state, blockPos, blockMovement, playerBoundingBox);
pushPlayerBlock(state, blockPos, blockMovement, playerBoundingBox, onGround);
}
}
// Resolve collision with slime blocks
@ -374,14 +388,14 @@ public class PistonBlockEntity {
BlockState state = entry.getValue();
if (state.is(Blocks.SLIME_BLOCK)) {
Vector3d blockPos = entry.getKey().toDouble();
pushPlayerBlock(state, blockPos, blockMovement, playerBoundingBox);
pushPlayerBlock(state, blockPos, blockMovement, playerBoundingBox, onGround);
}
}
// Undo shrink
playerBoundingBox.setSizeX(playerBoundingBox.getSizeX() + shrink.getX());
playerBoundingBox.setSizeY(playerBoundingBox.getSizeY() + shrink.getY());
playerBoundingBox.setSizeZ(playerBoundingBox.getSizeZ() + shrink.getZ());
playerBoundingBox.setSizeX(sizeX);
playerBoundingBox.setSizeY(sizeY);
playerBoundingBox.setSizeZ(sizeZ);
}
/**
@ -391,20 +405,22 @@ public class PistonBlockEntity {
* @param playerBoundingBox The player's bounding box
* @return True if the player attached, otherwise false
*/
private boolean isPlayerAttached(Vector3d blockPos, BoundingBox playerBoundingBox) {
private boolean isPlayerAttached(Vector3d blockPos, BoundingBox playerBoundingBox, boolean onGround) {
if (orientation.isVertical()) {
return false;
}
return session.getPlayerEntity().isOnGround() && HONEY_BOUNDING_BOX.checkIntersection(blockPos, playerBoundingBox);
return onGround && HONEY_BOUNDING_BOX.checkIntersection(blockPos, playerBoundingBox);
}
/**
* Launches a player if the player is on the pushing side of the slime block
*
* @param blockPos The position of the slime block
* @param playerPos The player's position
* @param playerBoundingBox The player's bounding box
*/
private void applySlimeBlockMotion(Vector3d blockPos, Vector3d playerPos) {
private void applySlimeBlockMotion(Vector3d blockPos, BoundingBox playerBoundingBox) {
Vector3d playerPos = Vector3d.from(playerBoundingBox.getMiddleX(), playerBoundingBox.getMiddleY(), playerBoundingBox.getMiddleZ());
Direction movementDirection = orientation;
// Invert direction when pulling
if (action == PistonValueType.PULLING) {
@ -470,7 +486,7 @@ public class PistonBlockEntity {
return maxIntersection;
}
private void pushPlayerBlock(BlockState state, Vector3d startingPos, double blockMovement, BoundingBox playerBoundingBox) {
private void pushPlayerBlock(BlockState state, Vector3d startingPos, double blockMovement, BoundingBox playerBoundingBox, boolean onGround) {
PistonCache pistonCache = session.getPistonCache();
Vector3d movement = getMovement().toDouble();
// Check if the player collides with the movingBlock block entity
@ -480,12 +496,12 @@ public class PistonBlockEntity {
if (state.is(Blocks.SLIME_BLOCK)) {
pistonCache.setPlayerSlimeCollision(true);
applySlimeBlockMotion(finalBlockPos, Vector3d.from(playerBoundingBox.getMiddleX(), playerBoundingBox.getMiddleY(), playerBoundingBox.getMiddleZ()));
applySlimeBlockMotion(finalBlockPos, playerBoundingBox);
}
}
Vector3d blockPos = startingPos.add(movement.mul(blockMovement));
if (state.is(Blocks.HONEY_BLOCK) && isPlayerAttached(blockPos, playerBoundingBox)) {
if (state.is(Blocks.HONEY_BLOCK) && isPlayerAttached(blockPos, playerBoundingBox, onGround)) {
pistonCache.setPlayerCollided(true);
pistonCache.setPlayerAttachedToHoney(true);
@ -508,7 +524,7 @@ public class PistonBlockEntity {
if (state.is(Blocks.SLIME_BLOCK)) {
pistonCache.setPlayerSlimeCollision(true);
applySlimeBlockMotion(blockPos, Vector3d.from(playerBoundingBox.getMiddleX(), playerBoundingBox.getMiddleY(), playerBoundingBox.getMiddleZ()));
applySlimeBlockMotion(blockPos, playerBoundingBox);
}
}
}
@ -584,7 +600,7 @@ public class PistonBlockEntity {
movingBlockMap.put(getPistonHeadPos(), this);
Vector3i movement = getMovement();
BoundingBox playerBoundingBox = session.getCollisionManager().getPlayerBoundingBox().clone();
BoundingBox playerBoundingBox = session.getCollisionManager().getActiveBoundingBox().clone();
if (orientation == Direction.UP) {
// Extend the bounding box down, to catch collisions when the player is falling down
playerBoundingBox.extend(0, -256, 0);
@ -628,17 +644,19 @@ public class PistonBlockEntity {
return;
}
placedFinalBlocks = true;
Vector3i movement = getMovement();
BoundingBox playerBoundingBox = session.getCollisionManager().getActiveBoundingBox().clone();
attachedBlocks.forEach((blockPos, state) -> {
blockPos = blockPos.add(movement);
// Don't place blocks that collide with the player
if (!SOLID_BOUNDING_BOX.checkIntersection(blockPos.toDouble(), session.getCollisionManager().getPlayerBoundingBox())) {
if (!SOLID_BOUNDING_BOX.checkIntersection(blockPos.toDouble(), playerBoundingBox)) {
ChunkUtils.updateBlock(session, state, blockPos);
}
});
if (action == PistonValueType.PUSHING) {
Vector3i pistonHeadPos = getPistonHeadPos().add(movement);
if (!SOLID_BOUNDING_BOX.checkIntersection(pistonHeadPos.toDouble(), session.getCollisionManager().getPlayerBoundingBox())) {
if (!SOLID_BOUNDING_BOX.checkIntersection(pistonHeadPos.toDouble(), playerBoundingBox)) {
ChunkUtils.updateBlock(session, Blocks.PISTON_HEAD.defaultBlockState()
.withValue(Properties.SHORT, false)
.withValue(Properties.FACING, orientation), pistonHeadPos);

2
core/src/main/java/org/geysermc/geyser/translator/protocol/bedrock/BedrockPlayerInputTranslator.java
View file

@ -52,6 +52,8 @@ public class BedrockPlayerInputTranslator extends PacketTranslator<PlayerInputPa
session.sendDownstreamGamePacket(playerInputPacket);
session.getPlayerEntity().setVehicleInput(packet.getInputMotion());
// Bedrock only sends movement vehicle packets while moving
// This allows horses to take damage while standing on magma
Entity vehicle = session.getPlayerEntity().getVehicle();

5
core/src/main/java/org/geysermc/geyser/translator/protocol/bedrock/entity/player/BedrockMovePlayerTranslator.java
View file

@ -30,6 +30,7 @@ import org.cloudburstmc.math.vector.Vector3f;
import org.cloudburstmc.protocol.bedrock.packet.MovePlayerPacket;
import org.geysermc.geyser.entity.EntityDefinitions;
import org.geysermc.geyser.entity.type.player.SessionPlayerEntity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.text.ChatColor;
import org.geysermc.geyser.translator.protocol.PacketTranslator;
@ -84,7 +85,9 @@ public class BedrockMovePlayerTranslator extends PacketTranslator<MovePlayerPack
session.sendDownstreamGamePacket(playerRotationPacket);
} else {
if (session.getWorldBorder().isPassingIntoBorderBoundaries(packet.getPosition(), true)) {
// World border collision will be handled by client vehicle
if (!(entity.getVehicle() instanceof ClientVehicle clientVehicle && clientVehicle.isClientControlled())
&& session.getWorldBorder().isPassingIntoBorderBoundaries(packet.getPosition(), true)) {
return;
}

2
core/src/main/java/org/geysermc/geyser/translator/protocol/bedrock/entity/player/BedrockRiderJumpTranslator.java
View file

@ -38,6 +38,8 @@ import org.geysermc.geyser.translator.protocol.Translator;
public class BedrockRiderJumpTranslator extends PacketTranslator<RiderJumpPacket> {
@Override
public void translate(GeyserSession session, RiderJumpPacket packet) {
session.getPlayerEntity().setVehicleJumpStrength(packet.getJumpStrength());
Entity vehicle = session.getPlayerEntity().getVehicle();
if (vehicle instanceof AbstractHorseEntity) {
ServerboundPlayerCommandPacket playerCommandPacket = new ServerboundPlayerCommandPacket(vehicle.getEntityId(), PlayerState.START_HORSE_JUMP, packet.getJumpStrength());

1
core/src/main/java/org/geysermc/geyser/translator/protocol/java/JavaRespawnTranslator.java
View file

@ -101,6 +101,7 @@ public class JavaRespawnTranslator extends PacketTranslator<ClientboundRespawnPa
DimensionUtils.fastSwitchDimension(session, fakeDim);
}
session.setWorldName(spawnInfo.getWorldName());
session.setWorldTicks(0);
DimensionUtils.switchDimension(session, newDimension);
ChunkUtils.loadDimension(session);

5
core/src/main/java/org/geysermc/geyser/translator/protocol/java/entity/JavaMoveVehicleTranslator.java
View file

@ -28,6 +28,7 @@ package org.geysermc.geyser.translator.protocol.java.entity;
import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.ClientboundMoveVehiclePacket;
import org.cloudburstmc.math.vector.Vector3f;
import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.translator.protocol.PacketTranslator;
import org.geysermc.geyser.translator.protocol.Translator;
@ -40,6 +41,10 @@ public class JavaMoveVehicleTranslator extends PacketTranslator<ClientboundMoveV
Entity entity = session.getPlayerEntity().getVehicle();
if (entity == null) return;
if (entity instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().moveAbsolute(packet.getX(), packet.getY(), packet.getZ());
}
entity.moveAbsolute(Vector3f.from(packet.getX(), packet.getY(), packet.getZ()), packet.getYaw(), packet.getPitch(), false, true);
}
}

9
core/src/main/java/org/geysermc/geyser/translator/protocol/java/entity/JavaRemoveMobEffectTranslator.java
View file

@ -28,6 +28,7 @@ package org.geysermc.geyser.translator.protocol.java.entity;
import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.ClientboundRemoveMobEffectPacket;
import org.cloudburstmc.protocol.bedrock.packet.MobEffectPacket;
import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.translator.protocol.PacketTranslator;
import org.geysermc.geyser.translator.protocol.Translator;
@ -39,11 +40,15 @@ public class JavaRemoveMobEffectTranslator extends PacketTranslator<ClientboundR
@Override
public void translate(GeyserSession session, ClientboundRemoveMobEffectPacket packet) {
Entity entity = session.getEntityCache().getEntityByJavaId(packet.getEntityId());
if (entity == null) {
return;
}
if (entity == session.getPlayerEntity()) {
session.getEffectCache().removeEffect(packet.getEffect());
} else if (entity instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().removeEffect(packet.getEffect());
}
if (entity == null)
return;
MobEffectPacket mobEffectPacket = new MobEffectPacket();
mobEffectPacket.setEvent(MobEffectPacket.Event.REMOVE);

9
core/src/main/java/org/geysermc/geyser/translator/protocol/java/entity/JavaSetPassengersTranslator.java
View file

@ -30,6 +30,7 @@ import org.cloudburstmc.protocol.bedrock.data.entity.EntityLinkData;
import org.cloudburstmc.protocol.bedrock.packet.SetEntityLinkPacket;
import org.geysermc.geyser.entity.EntityDefinitions;
import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.translator.protocol.PacketTranslator;
import org.geysermc.geyser.translator.protocol.Translator;
@ -55,6 +56,10 @@ public class JavaSetPassengersTranslator extends PacketTranslator<ClientboundSet
session.getPlayerEntity().setVehicle(entity);
// We need to confirm teleports before entering a vehicle, or else we will likely exit right out
session.confirmTeleport(passenger.getPosition().sub(0, EntityDefinitions.PLAYER.offset(), 0).toDouble());
if (entity instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().onMount();
}
}
if (passenger == null) {
// Can occur if the passenger is outside the client's tracking range
@ -100,6 +105,10 @@ public class JavaSetPassengersTranslator extends PacketTranslator<ClientboundSet
// as of Java 1.19.3, but the scheduled future checks for the vehicle being null anyway.
session.getMountVehicleScheduledFuture().cancel(false);
}
if (entity instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().onDismount();
}
}
}
}

5
core/src/main/java/org/geysermc/geyser/translator/protocol/java/entity/JavaTeleportEntityTranslator.java
View file

@ -28,6 +28,7 @@ package org.geysermc.geyser.translator.protocol.java.entity;
import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.ClientboundTeleportEntityPacket;
import org.cloudburstmc.math.vector.Vector3f;
import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.translator.protocol.PacketTranslator;
import org.geysermc.geyser.translator.protocol.Translator;
@ -40,6 +41,10 @@ public class JavaTeleportEntityTranslator extends PacketTranslator<ClientboundTe
Entity entity = session.getEntityCache().getEntityByJavaId(packet.getEntityId());
if (entity == null) return;
if (entity instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().moveAbsolute(packet.getX(), packet.getY(), packet.getZ());
}
entity.teleport(Vector3f.from(packet.getX(), packet.getY(), packet.getZ()), packet.getYaw(), packet.getPitch(), packet.isOnGround());
}
}

10
core/src/main/java/org/geysermc/geyser/translator/protocol/java/entity/JavaUpdateMobEffectTranslator.java
View file

@ -28,6 +28,7 @@ package org.geysermc.geyser.translator.protocol.java.entity;
import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.ClientboundUpdateMobEffectPacket;
import org.cloudburstmc.protocol.bedrock.packet.MobEffectPacket;
import org.geysermc.geyser.entity.type.Entity;
import org.geysermc.geyser.entity.vehicle.ClientVehicle;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.translator.protocol.PacketTranslator;
import org.geysermc.geyser.translator.protocol.Translator;
@ -39,13 +40,16 @@ public class JavaUpdateMobEffectTranslator extends PacketTranslator<ClientboundU
@Override
public void translate(GeyserSession session, ClientboundUpdateMobEffectPacket packet) {
Entity entity = session.getEntityCache().getEntityByJavaId(packet.getEntityId());
if (entity == session.getPlayerEntity()) {
session.getEffectCache().setEffect(packet.getEffect(), packet.getAmplifier());
}
if (entity == null) {
return;
}
if (entity == session.getPlayerEntity()) {
session.getEffectCache().setEffect(packet.getEffect(), packet.getAmplifier());
} else if (entity instanceof ClientVehicle clientVehicle) {
clientVehicle.getVehicleComponent().setEffect(packet.getEffect(), packet.getAmplifier());
}
int duration = packet.getDuration();
if (duration < 0) {
// java edition uses -1 for infinite, but bedrock doesn't have infinite

2
core/src/main/java/org/geysermc/geyser/translator/protocol/java/level/JavaSetTimeTranslator.java
View file

@ -36,6 +36,8 @@ public class JavaSetTimeTranslator extends PacketTranslator<ClientboundSetTimePa
@Override
public void translate(GeyserSession session, ClientboundSetTimePacket packet) {
session.setWorldTicks(packet.getWorldAge());
// Bedrock sends a GameRulesChangedPacket if there is no daylight cycle
// Java just sends a negative long if there is no daylight cycle
long time = packet.getTime();

2
gradle/libs.versions.toml
View file

@ -1,7 +1,7 @@
[versions]
base-api = "1.0.1"
cumulus = "1.1.2"
erosion = "1.1-20240515.191456-1"
erosion = "1.1-20240521.000109-3"
events = "1.1-SNAPSHOT"
jackson = "2.17.0"
fastutil = "8.5.2"